What does increasing the number of laborers in an economy generally cause? a decrease in the opportunity cost of production

an increase in the production possibilities curve

an increase in the opportunity cost of production

a decrease in the production possibilities curve

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.