A cylinder contains 2.25 mol of helium gas at 21.0°C. Assume that the helium behaves like an ideal gas.
(a) Find the total internal energy of the system.
=?J
(b) What is the average kinetic energy per molecule?
=?J
(c) How much energy would have to be added to the system to double the rms speed? The molar mass of helium is 4.00 10-3 kg/mol.
=?J