The web site of the Nobel Prize explains that readers who want to inspect the Curies’ notebooks must sign a paper that states that they are aware of the health risks that are involved with handling the notebooks. What health risk is most likely to occur from handling the notebooks? excessive coughing
anemia
muscle cramping
swelling of the joints

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?