Q. 6

Heat and work are equivalent. This means,
A. when we supply heat to a body we do work on it

B. when we do work on a body we supply heat to it

C. the temperature of a body can be increased by doing work in it.

D. a body kept at rest may be set into motion along a line supplying heat to it.

Answer :

According the statement “heat and work are equivalent”, heat supplied to the body increases its temperature. Similarly, work done on the body also increases its temperature.


ΔQ=heat exchange

ΔT=tempeature change


C=heat capacity

When heat is supplied to a body, we do not do work on it.

When we do work on an object, it does not mean we are supplying heat to the body.

Work done can be converted to temperature but increasing temperature cannot do work on an object

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Heat and work are equivalent. This means,

HC Verma - Concepts of Physics Part 2