How does yeast cause bread to rise?

Answer/Explanation:

As bread is baked, the yeasts release carbon dioxide that causes the bread to rise. ... The yeast uses glycolysis and alcohol fermentation to break down sugars in the dough. The yeast releases alcohol and carbon dioxide as a waste product. The carbon dioxide gas causes the bread to rise.

there are two significant figures.

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.