A gas is compressed in a cylinder by a movable piston to a volume one-half its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be___________________?

A. 30 Nm

B. 30,000 Nm

C. 300,000 Nm

D. 300 Nm

E. 3000 Nm

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