a mixture of gas expands from 0.03 m3 to 0.06 m3 at a constant pressure of 1 mpa

Question

A mixture of gas expands from 0.03 m3 to 0.06 m3 at a constant pressure of 1 mpa and absorbs 84 kj of heat during the process. the change in internal energy of the mixture is

Options:

A . 30 kJ

B . 84 kJ

C . 54 kJ

D . 114 kJ

Answer: Option C

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