Crystal Springs Preserve Video: Key Questions and Terms Notes What clues were used in the video to determine the estimated age of the fossil? What is bay bottom chert? How could you determine absolute age of this fossil?

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.