The Temperature of an Ideal Gas in a Sealed 0

The temperature of an ideal gas in a sealed 0.40-m³ rigid container is reduced from 350 K to 270 K. The final pressure of the gas is 60 kPA. 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.