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NEET 2013 · Thermodynamic Processes

Thermodynamic Processes question from NEET 2013

Q233NEET 2013Easy

Thermodynamic Processes

Which of the following relations does not give the equation of an adiabatic process, where terms have their usual meaning?

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Answer: (d)

Adiabatic relations: $PV^{\gamma} =$ const, $TV^{\gamma-1} =$ const, $P^{1-\gamma}T^{\gamma} =$ const.
$P^{\gamma}T^{1-\gamma} =$ const has the exponents swapped, so it is not adiabatic.
So the answer is (d).

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