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प्रश्न
State the condition for the flow of heat energy from one body to another.
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उत्तर
Heat energy always flows from a body at a higher temperature to a body at a lower temperature.
संबंधित प्रश्न
Water is used in hot water bottles for fomentation. Give a reason.
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In Regnault's apparatus for measuring specific heat capacity of a solid, there is an inlet and an outlet in the steam chamber. The inlet is near the top and the outlet is near the bottom. Why is it better than the opposite choice where the inlet is near the bottom and the outlet is near the top?
Define heat capacity.
650 J of heat is required to raise the temp. of 0.25 kg of lead from 15°C to 35°C. Calculate the Sp. heat capacity of lead.
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At same temperature and pressure of an ideal gas, ____________.
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[Heat of combustion = 8 × 103 Jg-1 Specific heat of water = 4.2 Jg-1°C-1]
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