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A cannot engine takes 10^(3) kilocalorie...

A cannot engine takes `10^(3)` kilocalories of heat from a reservoir at `627^(@)C` and exhausts it to a sink at `27^(@)C.` The efficiency of the engine will be.

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Efficiency of Carnot engine
`eta =1- (T_(2))/(T_(1)) =1- (300)/(900) =2/3`
or ` eta =66.6%`
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MOTION-HEAT-2 -EXERCISE-4 (LEVEL-II)
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  12. A real gas behaves like an ideal gas if its

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  17. A mixture of 2 moles of helium gas ((atomic mass)=4a.m.u) and 1 mole o...

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