The latent heat of melting of ice is 80 Cal/g. This is the amount of heat required to convert 1 gram of ice at 0°C into liquid water at the same temperature, without any temperature change. This energy is necessary to overcome the molecular forces holding the ice crystals together. Understanding theRead more
The latent heat of melting of ice is 80 Cal/g. This is the amount of heat required to convert 1 gram of ice at 0°C into liquid water at the same temperature, without any temperature change. This energy is necessary to overcome the molecular forces holding the ice crystals together. Understanding the latent heat of melting is crucial in various scientific and engineering applications, such as climate studies, refrigeration, and the design of thermal energy storage systems. It explains why ice takes a significant amount of time and energy to melt compared to heating water by a similar amount. Therefore, the correct answer to the value of the latent heat of melting of ice is [C] 80 Cal/g. This fundamental concept is key to numerous processes involving phase changes and energy calculations in thermodynamics.
The heat required to change a unit mass of a solid substance from solid to liquid at its melting point is referred to as the latent heat of melting of solid. This specific amount of energy is needed to overcome the intermolecular forces holding the solid structure together, allowing the solid to traRead more
The heat required to change a unit mass of a solid substance from solid to liquid at its melting point is referred to as the latent heat of melting of solid. This specific amount of energy is needed to overcome the intermolecular forces holding the solid structure together, allowing the solid to transition into a liquid state without any change in temperature. Understanding this concept is vital in fields such as material science, thermodynamics, and various engineering applications. For instance, when ice melts to form water at 0°C, the energy input used to achieve this phase change without increasing the temperature is the latent heat of melting. Therefore, the correct answer is [C] Latent heat of melting of solid. This principle is essential for accurately calculating energy requirements in processes involving phase changes.
The emitted or absorbed heat which changes the state of the substance without causing any change in temperature is known as latent heat. This energy is crucial for phase transitions, such as melting, freezing, boiling, or condensation. During these processes, the temperature of the substance remainsRead more
The emitted or absorbed heat which changes the state of the substance without causing any change in temperature is known as latent heat. This energy is crucial for phase transitions, such as melting, freezing, boiling, or condensation. During these processes, the temperature of the substance remains constant while the latent heat either breaks or forms the molecular bonds necessary for the phase change. For example, when ice melts into water or water boils into steam, the temperature remains stable at the melting or boiling point, respectively, despite continuous heat input. This absorbed or released energy, termed latent heat, is fundamental in understanding various natural and industrial processes involving phase changes. Therefore, the correct answer is [D] Latent heat. This concept is pivotal in fields such as meteorology, refrigeration, and thermal management systems.
Water on mountains starts boiling at a temperature less than 100°C. This phenomenon occurs because the atmospheric pressure is lower at higher altitudes compared to sea level. Boiling occurs when a liquid's vapor pressure equals the surrounding atmospheric pressure. At higher elevations, the reducedRead more
Water on mountains starts boiling at a temperature less than 100°C. This phenomenon occurs because the atmospheric pressure is lower at higher altitudes compared to sea level. Boiling occurs when a liquid’s vapor pressure equals the surrounding atmospheric pressure. At higher elevations, the reduced atmospheric pressure lowers the boiling point of water. For instance, at an elevation of 2,000 meters (approximately 6,561 feet), water boils at about 93°C (199.4°F). This decreased boiling point has practical implications, such as affecting cooking times and methods in mountainous regions. Understanding this concept is essential for activities like mountaineering, high-altitude cooking, and certain industrial processes. Therefore, the correct answer is [A] Less than 100 °C. This reduction in boiling point due to lower atmospheric pressure at high altitudes is a well-established principle in physics and chemistry.
The correct answer is option [B] Melting point. The melting point is the temperature at which a solid substance transitions into its liquid state when heat is applied. At this temperature, the solid's internal structure breaks down, allowing its particles to move freely and assume the liquid state.Read more
The correct answer is option [B] Melting point. The melting point is the temperature at which a solid substance transitions into its liquid state when heat is applied. At this temperature, the solid’s internal structure breaks down, allowing its particles to move freely and assume the liquid state. Options [A] Boiling point and [C] Evaporation refer to processes involving liquid substances, not solids. Therefore, option [B] Melting point accurately describes the temperature associated with the solid-to-liquid phase transition. Option [D] None of these is incorrect, as melting point specifically denotes this transition.
The value of latent heat of melting of ice is
The latent heat of melting of ice is 80 Cal/g. This is the amount of heat required to convert 1 gram of ice at 0°C into liquid water at the same temperature, without any temperature change. This energy is necessary to overcome the molecular forces holding the ice crystals together. Understanding theRead more
The latent heat of melting of ice is 80 Cal/g. This is the amount of heat required to convert 1 gram of ice at 0°C into liquid water at the same temperature, without any temperature change. This energy is necessary to overcome the molecular forces holding the ice crystals together. Understanding the latent heat of melting is crucial in various scientific and engineering applications, such as climate studies, refrigeration, and the design of thermal energy storage systems. It explains why ice takes a significant amount of time and energy to melt compared to heating water by a similar amount. Therefore, the correct answer to the value of the latent heat of melting of ice is [C] 80 Cal/g. This fundamental concept is key to numerous processes involving phase changes and energy calculations in thermodynamics.
See lessThe heat required to change a unit mass of a solid substance from solid to liquid at its melting point is called
The heat required to change a unit mass of a solid substance from solid to liquid at its melting point is referred to as the latent heat of melting of solid. This specific amount of energy is needed to overcome the intermolecular forces holding the solid structure together, allowing the solid to traRead more
The heat required to change a unit mass of a solid substance from solid to liquid at its melting point is referred to as the latent heat of melting of solid. This specific amount of energy is needed to overcome the intermolecular forces holding the solid structure together, allowing the solid to transition into a liquid state without any change in temperature. Understanding this concept is vital in fields such as material science, thermodynamics, and various engineering applications. For instance, when ice melts to form water at 0°C, the energy input used to achieve this phase change without increasing the temperature is the latent heat of melting. Therefore, the correct answer is [C] Latent heat of melting of solid. This principle is essential for accurately calculating energy requirements in processes involving phase changes.
See lessThe emitted or absorbed heat which changes the state of the substance, but does not cause any change in temperature, is called
The emitted or absorbed heat which changes the state of the substance without causing any change in temperature is known as latent heat. This energy is crucial for phase transitions, such as melting, freezing, boiling, or condensation. During these processes, the temperature of the substance remainsRead more
The emitted or absorbed heat which changes the state of the substance without causing any change in temperature is known as latent heat. This energy is crucial for phase transitions, such as melting, freezing, boiling, or condensation. During these processes, the temperature of the substance remains constant while the latent heat either breaks or forms the molecular bonds necessary for the phase change. For example, when ice melts into water or water boils into steam, the temperature remains stable at the melting or boiling point, respectively, despite continuous heat input. This absorbed or released energy, termed latent heat, is fundamental in understanding various natural and industrial processes involving phase changes. Therefore, the correct answer is [D] Latent heat. This concept is pivotal in fields such as meteorology, refrigeration, and thermal management systems.
See lessWater on mountains starts boiling at the following temperature
Water on mountains starts boiling at a temperature less than 100°C. This phenomenon occurs because the atmospheric pressure is lower at higher altitudes compared to sea level. Boiling occurs when a liquid's vapor pressure equals the surrounding atmospheric pressure. At higher elevations, the reducedRead more
Water on mountains starts boiling at a temperature less than 100°C. This phenomenon occurs because the atmospheric pressure is lower at higher altitudes compared to sea level. Boiling occurs when a liquid’s vapor pressure equals the surrounding atmospheric pressure. At higher elevations, the reduced atmospheric pressure lowers the boiling point of water. For instance, at an elevation of 2,000 meters (approximately 6,561 feet), water boils at about 93°C (199.4°F). This decreased boiling point has practical implications, such as affecting cooking times and methods in mountainous regions. Understanding this concept is essential for activities like mountaineering, high-altitude cooking, and certain industrial processes. Therefore, the correct answer is [A] Less than 100 °C. This reduction in boiling point due to lower atmospheric pressure at high altitudes is a well-established principle in physics and chemistry.
See lessThe temperature at which a solid substance gets converted into liquid after receiving heat is called
The correct answer is option [B] Melting point. The melting point is the temperature at which a solid substance transitions into its liquid state when heat is applied. At this temperature, the solid's internal structure breaks down, allowing its particles to move freely and assume the liquid state.Read more
The correct answer is option [B] Melting point. The melting point is the temperature at which a solid substance transitions into its liquid state when heat is applied. At this temperature, the solid’s internal structure breaks down, allowing its particles to move freely and assume the liquid state. Options [A] Boiling point and [C] Evaporation refer to processes involving liquid substances, not solids. Therefore, option [B] Melting point accurately describes the temperature associated with the solid-to-liquid phase transition. Option [D] None of these is incorrect, as melting point specifically denotes this transition.
See less