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प्रश्न
State Kelvin-Planck's statement of the second law of thermodynamics.
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उत्तर
Kelvin-Planck's statement: It is impossible to construct a heat engine that operates in a cycle, whose sole effect is to convert the heat completely into work. This implies that no heat engine in the universe can have 100% efficiency.
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संबंधित प्रश्न
Define heat engine.
What are the processes involves in a Carnot engine?
Derive the expression for Carnot engine efficiency.
A Carnot engine whose efficiency is 45% takes heat from a source maintained at a temperature of 327°C. To have an engine of efficiency of 60% what must be the intake temperature for the same exhaust (sink) temperature?
For a heat engine operating between temperatures t1 °C and t2 °C, its efficiency will be ______.
Heat engine transfers ______.
Let η1 is the efficiency of an engine at T1 = 447°C and T2 = 147°C while η2, is the efficiency at T1 = 947°C and T2 = 47°C. The ratio `eta_1/eta_2` will be ______.
Draw a neat labelled P - V diagram for a typical heat engine.
What does a heat engine consist of?
What is a heat engine?
