I need this answer as soon as possible If there are 10.0 Liters of a gas in a balloon and the balloon expands to occupy a volume of 28.0 Liters with a 4.0 atm reduction in pressure, what was the initial
pressure?
O V1-(V.2)n 1)/n 2

Solid tin exists in two forms: white and gray. for the transformation sn(s, white) → sn(s, gray) the enthalpy change is -2.1 kj/mol and the entropy change is -7.4 j/(mol*k). a. calculate the gibbs free energy change for the conversion of 1.00 mol white tin to gray tin at -30℃. b. will white tin convert spontaneously to gray tin at -30℃? c. at what temperature are white and gray tin thermodynamically equivalent at a pressure of 1 atm?