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प्रश्न
Two bodies at different temperatures are placed in contact. State the direction in which the heat will flow.
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उत्तर
Heat will flow from a hot body (body at a higher temperature) to a cold body (body at a lower temperature).
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संबंधित प्रश्न
State the three units of temperature.
What is heat ? Write its S.I. unit.
Why does a piece of ice when touched with hands appear cold?
What is the upper fixed point on the Celsius scale?
Why does a substance expand on heating?
Numerical Problems.
An iron ball requires 1000 J of heat to raise its temperature by 20°C. Calculate the heat capacity of the ball.
Heat energy flows from a body at a low temperature to a body at a higher temperature.
Give reasons why –
gaps are left between railway tracks
What is the minimum possible temperature? Is there also a maximum possible temperature?
