ThermodynamicsHard

Question

Five moles of an ideal gas is expanded isothermally from 5 dm3 to 5 m3 at 300 K. Which of the following is incorrect about the gas?

Options

A.No heat is absorbed or rejected by the gas.
B.There is no change in internal energy of the gas.
C.There is no change in enthalpy of the gas.
D.Pressure of the gas will decrease by 1000 times.

Solution

As the system is doing work but its internal energy is not changing, the system must absorb heat.

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