Question

A series of thermodynamic processes is shown in the P-V diagram. In process ab,150 J of heat are added to the system. In process bd, 600 J of heat are

added. i) Find the internal energy change in process ab. ii) Find the internal energy change in process abd. iii) Find the total heat added in process acd. iv) How much more work would be done by the process abcd via the dashed line compared to the direct process acd?

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