Thermodynamics Interactive Example
A monatomic, ideal gas is in a sealed container (the number of gas molecules is always constant:
n = 2 moles); the initial pressure is P_{i} = 1.01 x 10^{5} Pa and the initial volume is
V_{i} = 0.0224 m^{3}.
 First, the volume of the gas is decreased at a constant
pressure (at P_{i} = 1.01 x 10^{5} Pa) to a final volume of
V_{f} = 0.0155 m^{3}.
 Second, the pressure of the gas is increased at a constant
volume (at V_{f} = 0.0155 m^{3}) to a final pressure of
P_{f} = 1.35 x 10^{5} Pa.
How much heat was added to (give as a
positive number) or removed from (give as a negative number) the system? (The gas constant R = 8.31 J/moleK.)
Q = J
