Inversion temperature is defined as the temperature above which a gas gets warm up and below which the gas becomes cooler, when expanded adiabatically. For this gas (treat it as a van der Waals gas, f

Question

Inversion temperature is defined as the temperature above which a gas gets warm up and below which the gas becomes cooler, when expanded adiabatically. For this gas (treat it as a van der Waals gas, for which the inversion temperature is twice the Boyle temperature), the Boyle temperature is 300 K. What will happen to the gas if it is adiabatically expanded at 400 K?

Options:

Answer:

D

Solution:

T_i = 2T_B = 600 K. At 400 K the gas is below T_i, so it cools on expansion. Matches (d).

TestHub · Accepted Answer

T i = 2T B = 600 K. At 400 K the gas is below T i , so it cools on expansion. Matches (d).

Chemistry - Thermodynamics - I Question with Solution | TestHub

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