SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the heat absorbed or released at a boiling process during a change of phase
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the heat absorbed or released at a constant temperature during a change of phase
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the heat absorbed or released at a constant temperature during a change of phase of 1 kg object
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the heat absorbed or released by an object to increase or decrease its temperature by 1 degree Celcius
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Detailed explanation-1: -Latent heat is defined as heat energy that is absorbed or released during the transition phase of a substance. It can be either the transition of gas to a liquid or a liquid to a solid. It is the heat required to convert a solid into a liquid or vapour, or a liquid into a vapour, without a change of temperature.
Detailed explanation-2: -Instead, the additional thermal energy acts to loosen bonds between molecules or atoms and causes a phase change. Because this energy enters or leaves a system during a phase change without causing a temperature change in the system, it is known as latent heat (latent means hidden).
Detailed explanation-3: -The energy that must be added to or removed from water as it changes phases is called latent heat. The latent heat absorbed or released by water is necessary because the water molecules must change their chemical bonding patterns and internal energy to change phase.