0.039 6 gram of a metal was completely dissolved in hydrochloric acid and the hydrogen evolved was mixed with oxygen and sparked to form water. 13.75 CC of dry oxygen at 27 degree Celsius and 680mm pressure were required for complete combustion. Find the equivalent weight of the metal.

that's what i got you can count the number of atoms

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.