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Sahay Sir > Question Answers > MTG NEET Physics > Part 1 > Chapter 15 - Thermodynamics > Two Carnot engines A and B are operated in series. The first one A receives heat at 900K and rejects it to a reservoir at T K. The second engine B receives the heat rejected by the first engine and rejects it to a heat reservoir at 400K. Calculate the value of T, when the efficiency of two engines is the same.

Two Carnot engines A and B are operated in series. The first one A receives heat at 900K and rejects it to a reservoir at T K. The second engine B receives the heat rejected by the first engine and rejects it to a heat reservoir at 400K. Calculate the value of T, when the efficiency of two engines is the same.

Heat is supplied to a diatomic gas at constant pressure. The ratio of Δ Q : Δ U : ΔW is :