ideal gas law PV = nRT?
P = nRT/V
calculate this for each of the gases and see which has the largest value
Four cylinders filled with gas are at the same temperature. In which of the following will the gas exert the most pressure?
A) A 2.0 L cylinder containing 4.0 g of H2.
B) A 2.0 L cylinder containing 4.0 g of He.
C) A 1.0 L cylinder containing 16.0 g of O2
D) None. At constant temperature, pressure is constant.
*I understand that when volume decreases, pressure increases but that is about all I know. Here it involves mass, molar mass and volumes and I don't know how to relate that to the basic knowledge I have that I just mentioned (volume decreases when pressure increases).
for instance, say for gas 1: P = 2T
and for gas 2: P = 3T
then clearly, whatever T is (as long as it is positive) 3T is bigger than 2T and so we would say gas 1 has more pressure. and so on, so you will be able to figure it out even if T is unknown