Tamil Nadu State board (Class 10) › Thermal Physics › Question #6273
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QWhich of the following is a characteristic feature of heat energy transfer?

ID: #6273 Thermal Physics 186 views
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  • A Heat always flows from a system at lower temperature to a system at higher temperature. ✔ ✖
  • B The mass of a system is altered when it is heated or cooled. ✔ ✖
  • C For any exchange of heat, the heat gained by the cold system is greater than the heat lost by the hot system. ✔ ✖
  • D Heat gained = Heat lost. ✔ ✖
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For any exchange of heat, the heat gained by the cold system is equal to heat lost by the hot system. This is known as the law of conservation of energy and is represented by the equation Heat gained = Heat lost.

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