a pair of 100 ml samples of water are taken from a well bored into a large underground salt (NaCl) deposit. Sample #1 is from the top of the well, and is initially at 32 degree C. Sample #2 is from a depth of 50 m, and is initially at 42 degree C. Both samples are allowed to come to room temperature (20 degree C) and 1 atm pressure. An NaCl precipitate is seen to form in Sample #1