Given an equimolar binary mixture, calculate the activity coefficients for both components from the 2-parameter Margules equation whose parameter values are A12 5 0.5 and A21 5 1.5. What would be the excess molar Gibbs free for this system?

why do the isotopes of a particular element behave differently in nuclear reactions but the same in chemical reactions? chemical reactions involve changes to electrons in an atom; isotopes do not differ in electrons, and so they react the same way during chemical changes.

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.