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  4. Figure shows four, p-V diagram for the given sample of gas. In which case no exchange of heat occurs with the sample?

Q. Figure shows four, p-V diagram for the given sample of gas. In which case no exchange of heat occurs with the sample?Physics Question Image

 2117  218 Rajasthan PMTRajasthan PMT 2009Thermodynamics Report Error

Solution:

For diagrams and pressure increases with increase in volume. This is possible when the temperature of the gas increases. Hence, exchange of heat takes place. For diagrams, and pressure decreases with increase in volume but the slope of curve is larger for . Therefore, it is for an adiabatic process for which no exchange of heat takes place.