It takes more time to cook potatoes on mountain tops primarily because atmospheric pressure is low. At higher altitudes, such as mountain tops, the atmospheric pressure is lower compared to sea level. This reduced atmospheric pressure lowers the boiling point of water. Since cooking involves boilingRead more
It takes more time to cook potatoes on mountain tops primarily because atmospheric pressure is low. At higher altitudes, such as mountain tops, the atmospheric pressure is lower compared to sea level. This reduced atmospheric pressure lowers the boiling point of water. Since cooking involves boiling water to cook potatoes, the lower boiling point means that water boils at a lower temperature at higher altitudes than it does at sea level. Consequently, the lower temperature requires more time for the potatoes to cook thoroughly. Therefore, despite the temperature at the mountain top potentially being lower than at sea level due to factors like altitude and weather, the crucial factor affecting cooking time is the reduced atmospheric pressure, which affects the boiling point of water and thus the cooking process. Understanding this effect of altitude on cooking times is essential for planning meals and cooking effectively in high-altitude environments.
The reason why snow covered on mountains does not melt simultaneously due to the heat of the Sun is primarily because it reflects most of the heat received from the Sun. Snow has high albedo, meaning it reflects a significant portion of the sunlight that strikes its surface. This reflective propertyRead more
The reason why snow covered on mountains does not melt simultaneously due to the heat of the Sun is primarily because it reflects most of the heat received from the Sun. Snow has high albedo, meaning it reflects a significant portion of the sunlight that strikes its surface. This reflective property prevents snow from absorbing much heat, unlike darker surfaces which absorb more solar radiation. As a result, even when exposed to direct sunlight, the temperature of the snow remains lower, slowing down the melting process. Additionally, the high altitude and cooler air temperatures at mountain peaks also contribute to slower melting. Therefore, the combination of reflective properties and cooler ambient temperatures at higher elevations helps maintain the snow cover on mountain peaks, despite exposure to solar radiation. Understanding these factors is crucial for predicting snowmelt rates, managing water resources, and assessing the impact of climate change on mountain ecosystems.
It snows on high hills primarily because the temperature is lower than the freezing point, causing water vapor to freeze and turn into ice. As air ascends over the hills, it undergoes adiabatic cooling, resulting in a decrease in temperature with increasing altitude. If the air temperature drops belRead more
It snows on high hills primarily because the temperature is lower than the freezing point, causing water vapor to freeze and turn into ice. As air ascends over the hills, it undergoes adiabatic cooling, resulting in a decrease in temperature with increasing altitude. If the air temperature drops below the freezing point, the water vapor in the air condenses into tiny ice crystals or snowflakes, leading to snowfall. This process occurs when the air is saturated with moisture, which commonly happens in regions where moist air is forced to rise over mountainous terrain. Additionally, high hills may experience orographic lifting, where air is lifted and cooled as it moves over the elevated terrain. As a result, the combination of cooler temperatures and lifted air masses enhances the likelihood of snowfall on high hills. Therefore, the correct answer is [C] On high hills, the temperature is lower than the freezing point, hence water vapor freezes and turns into ice. Understanding these atmospheric processes is essential for predicting snowfall patterns and studying mountain climates.
The boiling point of water varies depending on the pressure above the open surface of water. At standard atmospheric pressure, which is approximately 1 atmosphere or 101.3 kilopascals (kPa), water boils at 100°C (212°F). However, at higher elevations where atmospheric pressure is lower, such as in mRead more
The boiling point of water varies depending on the pressure above the open surface of water. At standard atmospheric pressure, which is approximately 1 atmosphere or 101.3 kilopascals (kPa), water boils at 100°C (212°F). However, at higher elevations where atmospheric pressure is lower, such as in mountainous regions, the boiling point of water is lower than 100°C. Conversely, in pressurized environments, such as in pressure cookers, the boiling point of water increases above 100°C due to the elevated pressure. This relationship between pressure and boiling point is described by the Clausius-Clapeyron equation, which states that as pressure increases, the boiling point of a liquid also increases, and as pressure decreases, the boiling point decreases. Therefore, the boiling point of water is not always 100°C but depends on the pressure above the open surface of water. Understanding this principle is essential for various applications, including cooking, industrial processes, and the study of atmospheric phenomena such as weather patterns and cloud formation. Hence, the correct answer is [D] Depends on the pressure above the open surface of water.
The rate of evaporation for a certain liquid depends on several factors, including the temperature of the liquid, the temperature of the air, and the open surface area of the liquid. Higher temperatures generally increase the kinetic energy of liquid molecules, promoting faster evaporation. SimilarlRead more
The rate of evaporation for a certain liquid depends on several factors, including the temperature of the liquid, the temperature of the air, and the open surface area of the liquid. Higher temperatures generally increase the kinetic energy of liquid molecules, promoting faster evaporation. Similarly, warmer air can hold more moisture, facilitating faster evaporation. Additionally, a larger open surface area allows for more liquid molecules to escape into the air, accelerating the evaporation process. Therefore, all these factors—temperature of the liquid, temperature of the air, and open surface area—play crucial roles in determining the rate of evaporation for a given liquid. Understanding these factors is essential for various applications, including drying processes, climate studies, and the design of evaporative cooling systems. Hence, the correct answer is [D] On all the above factors.
It takes more time to cook potatoes on mountain tops because
It takes more time to cook potatoes on mountain tops primarily because atmospheric pressure is low. At higher altitudes, such as mountain tops, the atmospheric pressure is lower compared to sea level. This reduced atmospheric pressure lowers the boiling point of water. Since cooking involves boilingRead more
It takes more time to cook potatoes on mountain tops primarily because atmospheric pressure is low. At higher altitudes, such as mountain tops, the atmospheric pressure is lower compared to sea level. This reduced atmospheric pressure lowers the boiling point of water. Since cooking involves boiling water to cook potatoes, the lower boiling point means that water boils at a lower temperature at higher altitudes than it does at sea level. Consequently, the lower temperature requires more time for the potatoes to cook thoroughly. Therefore, despite the temperature at the mountain top potentially being lower than at sea level due to factors like altitude and weather, the crucial factor affecting cooking time is the reduced atmospheric pressure, which affects the boiling point of water and thus the cooking process. Understanding this effect of altitude on cooking times is essential for planning meals and cooking effectively in high-altitude environments.
See lessThe reason why the snow covered on the mountains does not melt simultaneously due to the heat of the Sun is
The reason why snow covered on mountains does not melt simultaneously due to the heat of the Sun is primarily because it reflects most of the heat received from the Sun. Snow has high albedo, meaning it reflects a significant portion of the sunlight that strikes its surface. This reflective propertyRead more
The reason why snow covered on mountains does not melt simultaneously due to the heat of the Sun is primarily because it reflects most of the heat received from the Sun. Snow has high albedo, meaning it reflects a significant portion of the sunlight that strikes its surface. This reflective property prevents snow from absorbing much heat, unlike darker surfaces which absorb more solar radiation. As a result, even when exposed to direct sunlight, the temperature of the snow remains lower, slowing down the melting process. Additionally, the high altitude and cooler air temperatures at mountain peaks also contribute to slower melting. Therefore, the combination of reflective properties and cooler ambient temperatures at higher elevations helps maintain the snow cover on mountain peaks, despite exposure to solar radiation. Understanding these factors is crucial for predicting snowmelt rates, managing water resources, and assessing the impact of climate change on mountain ecosystems.
See lessWhy does it snow on high hills?
It snows on high hills primarily because the temperature is lower than the freezing point, causing water vapor to freeze and turn into ice. As air ascends over the hills, it undergoes adiabatic cooling, resulting in a decrease in temperature with increasing altitude. If the air temperature drops belRead more
It snows on high hills primarily because the temperature is lower than the freezing point, causing water vapor to freeze and turn into ice. As air ascends over the hills, it undergoes adiabatic cooling, resulting in a decrease in temperature with increasing altitude. If the air temperature drops below the freezing point, the water vapor in the air condenses into tiny ice crystals or snowflakes, leading to snowfall. This process occurs when the air is saturated with moisture, which commonly happens in regions where moist air is forced to rise over mountainous terrain. Additionally, high hills may experience orographic lifting, where air is lifted and cooled as it moves over the elevated terrain. As a result, the combination of cooler temperatures and lifted air masses enhances the likelihood of snowfall on high hills. Therefore, the correct answer is [C] On high hills, the temperature is lower than the freezing point, hence water vapor freezes and turns into ice. Understanding these atmospheric processes is essential for predicting snowfall patterns and studying mountain climates.
See lessBoiling point of water
The boiling point of water varies depending on the pressure above the open surface of water. At standard atmospheric pressure, which is approximately 1 atmosphere or 101.3 kilopascals (kPa), water boils at 100°C (212°F). However, at higher elevations where atmospheric pressure is lower, such as in mRead more
The boiling point of water varies depending on the pressure above the open surface of water. At standard atmospheric pressure, which is approximately 1 atmosphere or 101.3 kilopascals (kPa), water boils at 100°C (212°F). However, at higher elevations where atmospheric pressure is lower, such as in mountainous regions, the boiling point of water is lower than 100°C. Conversely, in pressurized environments, such as in pressure cookers, the boiling point of water increases above 100°C due to the elevated pressure. This relationship between pressure and boiling point is described by the Clausius-Clapeyron equation, which states that as pressure increases, the boiling point of a liquid also increases, and as pressure decreases, the boiling point decreases. Therefore, the boiling point of water is not always 100°C but depends on the pressure above the open surface of water. Understanding this principle is essential for various applications, including cooking, industrial processes, and the study of atmospheric phenomena such as weather patterns and cloud formation. Hence, the correct answer is [D] Depends on the pressure above the open surface of water.
See lessThe rate of evaporation for a certain liquid depends on
The rate of evaporation for a certain liquid depends on several factors, including the temperature of the liquid, the temperature of the air, and the open surface area of the liquid. Higher temperatures generally increase the kinetic energy of liquid molecules, promoting faster evaporation. SimilarlRead more
The rate of evaporation for a certain liquid depends on several factors, including the temperature of the liquid, the temperature of the air, and the open surface area of the liquid. Higher temperatures generally increase the kinetic energy of liquid molecules, promoting faster evaporation. Similarly, warmer air can hold more moisture, facilitating faster evaporation. Additionally, a larger open surface area allows for more liquid molecules to escape into the air, accelerating the evaporation process. Therefore, all these factors—temperature of the liquid, temperature of the air, and open surface area—play crucial roles in determining the rate of evaporation for a given liquid. Understanding these factors is essential for various applications, including drying processes, climate studies, and the design of evaporative cooling systems. Hence, the correct answer is [D] On all the above factors.
See less