It will take more time to cook rice on Mount Everest due to the lower atmospheric pressure at high altitudes, which lowers the boiling point of water. This means water boils at a temperature below 100°C, slowing the cooking process.
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The rate of evaporation does not depend on the total volume of the liquid. Evaporation primarily depends on factors such as temperature, surface area, and air pressure. The volume of the liquid does not directly influence the rate at which ...
The temperature at which ice, water, and vapor coexist in equilibrium is called the triple point. This is a unique thermodynamic state where all three phases are present simultaneously.
Due to the evaporation of a liquid, its temperature will decrease. This occurs because evaporation is an endothermic process, where the liquid absorbs heat from its surroundings to transition into a gas, thereby lowering the liquid’s temperature.
The triple point of water is the specific condition at which water can coexist in solid, liquid, and vapor phases. It occurs at a temperature of 273.16 K and a pressure of 611.657 pascals.
Water boils when its vapor pressure equals the atmospheric pressure. This typically happens at 100°C (212°F) at sea level. However, boiling points vary with altitude and atmospheric pressure. “Static vapor pressure of water is equal to atmospheric pressure.”
The process of a substance changing into vapor before its boiling point is called evaporation. Evaporation occurs at the surface of a liquid at temperatures below the boiling point, driven by the escape of high-energy molecules into the air.
Man feels discomfort due to humidity because sweat does not evaporate efficiently in high humidity. Evaporation of sweat cools the body, and when humidity is high, this process is hindered, leading to overheating and discomfort.
Rice cooks quickly in a pressure cooker because high pressure increases the boiling point of water. This elevated boiling point allows the water to reach higher temperatures, cooking the rice more rapidly. Therefore, the correct answer is [B] High pressure ...
When a piece of ice floating in a glass of water completely melts, the level of water in the glass remains unchanged. This is because the volume of water displaced by the ice is equal to the volume of water ...