1. Two identical bottles at the same temperature contain the same gas. If bottle B has twice the volume and contains half the number of moles of gas as bottle A, how does the pressure in B compare with the pressure in A?
(a) PB = ½ PA.
(b) PB = 2 PA.
(c) PB = ¼ PA.
(d) PB = 4PA.
(e) PB = PA.
2. The temperature of an ideal gas increases. Which of the following is true?
(a) The pressure must decrease.
(b) The pressure must increase.
(c) The pressure must increase while the volume decreases.
(d) The volume must increase while the pressure decreases.
(e) The pressure, the volume, or both, may increase.
3. An ideal gas is in a sealed rigid container. The average kinetic energy of the gas molecules depends most on
(a) The size of the container.
(b) The number of molecules in the container.
(c) The temperature of the gas.
(d) The mass of the molecules.