What is the volume of 1.0 mole of gas at a pressure of 3.12 ATM and a temperature of 270K

In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d