Q.

Which of the following property of a system can be changed by transfer of heat from the surrounding to the system or vice-versa without expenditure of work?

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a

Enthalpy

b

Internal energy

c

Both (a) and (b)

d

None of these

answer is B.

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Detailed Solution

The internal energy of a system can be changed by transfer of heat from the surroundings to the system or vice-versa without expenditure of work. This exchange of energy which is a result of temperature difference is called heat, q.
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