Molar Heat Capacities: the Temperature of an Ideal Gas in a Sealed

Molar heat capacities: The temperature of an ideal gas in a sealed 0.40- rigid container is reduced from 350 K to The final pressure of the gas is The molar heat capacity at constant volume of the gas is 28.0 J/mol · K. The heat absorbed by the gas is closest to

A) -24 kJ.
B) -31 kJ.
C) 24 kJ.
D) 31 kJ.
E) 0.00 kJ.