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Sahay Sir > Question Answers > MTG NEET Physics > Part 1 > Chapter 15 - Thermodynamics > A Carnot engine having a perfect gas gas the working substance is driven backwards and is used for freezing water already at 0 C. If the engine is driven by 500 W electric motor with an efficiency of 60% how long will it take to freeze 15 kg of water? The working temps of the engine are 15 C and 0 C. The system involves no energy losses. Given latent heat of ice =333×10^(3)J kg^(-1).

A Carnot engine having a perfect gas gas the working substance is driven backwards and is used for freezing water already at 0 C. If the engine is driven by 500 W electric motor with an efficiency of 60% how long will it take to freeze 15 kg of water? The working temps of the engine are 15 C and 0 C. The system involves no energy losses. Given latent heat of ice =333×10^(3)J kg^(-1).

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