SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____
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one reaches a temperature of zero
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they both have an equal temperature
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one runs out of energy
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None of the above
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Explanation:
Detailed explanation-1: -Heat Transfer: The movement of heat from a warmer object to a colder one – when two substances at different temperatures are mixed together, heat flows from the warmer body to the cooler body until they reach the same temperature (Zeroth Law of Thermodynamics – Thermal Equilibrium).
Detailed explanation-2: -When two bodies having the same temperature are kept in contact with each other, no such transfer of enegry is possible, hence no flow of heat is witnessed. Q.
Detailed explanation-3: -Conduction occurs when two objects at different temperatures are in contact with each other. Heat flows from the hotter to the colder object until the temperature becomes the same.
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