Which of the following statement is true about δg?

when it is zero, neither the forward nor the reverse reaction is spontaneous.

when it is zero, both the forward and reverse reaction are spontaneous.

when it is positive, the forward reaction is spontaneous but the reverse is not.

when it is negative, the reverse reaction is spontaneous but the forward is not.

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume

A2-kg bowling ball is 1 meter off the ground on a post when it falls. just before it reaches the ground,its traveling 4.4 m/s. assuming that there is no air resistant, which statement is true a. the initial potential energy is less then the final kinetic energy b. the mechanical energy is not conserved c. the mechanical energy is conserved d. the initial potential energy is greater than the final kinetic energy