Mht CetThermodynamicsMHT CET 2026 18th April Morning ShiftMCQ+1 / -02026Which from following is correct expression of first law of thermodynamics for isothermal process?A$\text{W} = -\text{Q}$B$-\Delta\text{U} = -\text{W}$C$\Delta\text{U} = \text{Q}_\text{v}$D$\text{Q}_\text{p} = \Delta\text{U} + \text{P}_{\text{ext}}\Delta\text{V}$Check AnswerClear SelectionReveal AnswerShow Explanation