For one complete cycle of a thermodynamic process gas as shown in the P-V diagram, which of following correct?

Options

A. `DeltaE_(int) = 0, Q lt 0`
B. `DeltaE_(int) = 0, Q gt 0`
C. `DeltaE_(int) gt 0, Q lt 0`
D. `DeltaE_(int) lt 0, Q gt 0`

Answer

A

Explanation

`DeltaE_(i nt) =0` for a complete cycle and for given cycle work done is negative, so from law of thermodynamics `Q` will be negative i.e., `Q lt 0`.