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Five moles of an ideal gas is expanded i...

Five moles of an ideal gas is expanded isothermally from `5dm^(3)` to`5m^(3)` at 300 K.Which of the following is incorrect about the gas?
(A) No heat is absorbed (or) reject 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 be decrease by 1000 times

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