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प्रश्न
Temperature is the average ______ of the molecules of a substance.
विकल्प
difference in K.E and P.E
sum of P.E and K.E
difference in T.E and P.E
difference in K.E and T.E
उत्तर
Temperature is the average the difference in T.E and P.E of the molecules of a substance.
Hint: As total energy of a substance is equal to the sum of the K.E, and P.E of atoms (or) molecules
Temperature is equal to the average KE of molecules
K.E = T.E – P.E.
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संबंधित प्रश्न
How is the size of a degree defined on a Celsius scale ?
Define one joule of heat.
Explain the following:
Land becomes warmer than water during the day.
The following figure shows a rectangular box with two tubes P and Q at the top. A burning candle R is placed under the tube P. The candle burns brightly.
Explain:
(i) How is the air in the box circulating?
(ii) What will happen if the opening Q is closed?
______ determines the direction of the flow of heat.
Assertion: Temperature is the measure of heat energy.
Reason: Energy is the capacity to do work.
