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प्रश्न
Two bodies at different temperatures are placed in contact with each other. State the direction in which heat flows.
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उत्तर
Heat flows from a body at a higher temperature to a body of lower temperature.
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संबंधित प्रश्न
State the three units of temperature.
Name two scales of temperature. How are they interrelated?
State the volume changes that you will observe when a given mass of water is heated from 0°C to 10°C. Sketch a temperature-volume graph to show the behaviour.
Explain the following
In winter, water tanks (or ocean) start freezing from the surface and not from the bottom.
Convert 20°C into Fahrenheit scale.0
Numerical Problems.
An iron ball requires 1000 J of heat to raise its temperature by 20°C. Calculate the heat capacity of the ball.
Assertion (A): 0 °C = 273.16 K. For our convenience we take it as 273 K after rounding off the decimal.
Reason (R): To convert a temperature on the Celsius scale we have to add 273 to the given temperature.
