Consider a case where gas A and gas B are kept at the same temperature and both have the same mass. The attractive forces between molecules gas A are appreciable at a moderately high pressure and the repulsive forces are predominant at very high pressure. On the other hand, the intermolecular forces are virtually nil among molecules gas B. Sketch the graph PV/RT versus P for these two gases.

Consider one mole of a simple ideal gas enclosed in a cylindrical piston with rigid impermeable adiabatic walls. The piston has a cross sectional area ofA = 0.10 m^2 and the cylinder enclosing the gas has a height of h = 1.0 cm. The gas inside the piston has a temperature T = 300.K. Recall that the internal energy for an ideal gas is U= n cV,mT, where cV,m= 1.5 R is the molar heat capacity for the ideal gas. Calculate the pressure and the internal energy of the ideal gas.

You need to design a gas with a y (= Cp/Cv) value of 1.5. While no individual gas has this value, you could produce such a gas by mixing together a monatomic gas and a diatomic gas. What fraction or percentage of the molecules in the mixture needs to be monatomic? [Hint: for a monatomic gas Cv = (3/2)R and for a diamotic gas Cy (5/2) R.] =

Two containers each hold 1 mole of an ideal gas at 1 atm. Container A holds a monatomic gas and container B holds a diatomic gas. The volume of each container is halved while the pressure is held constant. (Assume the initial volumes of containers A and B are equal.) (c) What is the ratio  QA QB  of the energy transferred to gases A and B?