You are a scientist exploring the surface of a new planet. you find a new substance that you do not recognize. as you attempt to identify this substance you notice that it is very spreads out to form the shape of the container you keep it in. the surface of the substance becomes very flat and smooth. what state of matter is the new substance in? a solid b liquid c gas d plasma

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?