A gas is expanded isothermally from 2 litre to 5 litre volume at constant pressure of 1.5 ATM what is the change in internal energy of the system
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Here I'm assuming that the gas is an ideal gas, because if it's not an ideal gas we can't get the solution or maybe the question is incomplete.
The internal energy of an ideal gas is only dependent on temperature.
According to the question the gas is expanding isothermally (const. Temperature).
Which means the internal energy is not changing.
i.e the internal energy(U/E) is '0'.
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