Question

During adiabatic expansion, the increase in volume is associated with

• A. increase in pressure and temperature
• B. decrease in pressure and temperature
• C. increase in pressure and decrease in temperature
• D. Decrese in pressure and increase in temperature

Answer 1

The correct option is B decrease in pressure and temperature

Increase in pressure will lead to decrease in volume and temperature in case of adiabatic process because of the following thermodynamic relations,
$P\times V^{\gamma }=k$
$P^{1-\gamma }\times T^{\gamma }=t$

where k ans t are constant.