Which describes the volume of 1 mol of gas at standard temperature and pressure? the volume is greater for a larger mass of gas.
the volume is the same for any gas.
the volume depends on the size of the container.
the volume varies with the pressure.

I think the correct answer would be the second option. The volume of 1 mol of gas at standard temperature and pressure would be the same for any gas. If and only if the gas is an ideal gas. This is according to the ideal gas law ( PV = nRT ), at STP ( P = 1 atm T = 273.15 K ) you would calculate the volume of the gas to be 22.4 L. So, 1 mol of any ideal gas would occupy 22.4 L of volume. We calculate as follows:

PV = nRT
V = nRT / P
V = (1 mol ) (0.08205 L-atm / mol K) (273.15 K ) / 1 atm
V = 22.4 L 

Man i dont know this answer

Okay well gravitational energy is matter forced by gravity making energy though the kinetic energy then the electric energy produces electricity from the kinetic energy and the kinetic energy gets its energy from the gravitational energy. was that the answer you wanted or something else?