Under identical conditions, separate samples of o2 and an unknown gas were allowed to effuse through identical membranes simultaneously. after a certain amount of time, it was found that ml of o2 had passed through the membrane, but only ml of of the unknown gas had passed through. what is the molar mass of the unknown gas?

i just got this problem. it's 90.3

plasma - state of matter made up of electrically charged particles

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.