Calculate the final temp of 245 ml of water initially at 32 degrees C upon absorption of 17 Kj of heat. and explain how you did it please! Thanks
2006-09-26 06:22:45 · 5 answers · asked by Angel Eve 6 in Science & Mathematics ➔ Chemistry
Specific heat of water is 4.184 J/g C. Assuming a density of ~1 for water, 245 ml will weigh 245 g.
Heat = Sp.H. * mass * (delta)T
so (delta)T = Heat/(Sp.H. * mass) = 17000J/(4.184 J/g C * 245 g)
(delta)T = 16.58 C
Final temperature will be 48.58 C.
2006-09-26 06:27:28 · answer #1 · answered by TheOnlyBeldin 7 · 1⤊ 3⤋
the basic equation for heat transfer applies. try it as i dont want to spoon feed. in any case why should a hot stuff like you bother about the final temperature.
2006-09-26 13:36:19 · answer #2 · answered by brucewillisg 2 · 0⤊ 0⤋
Above answer is right, except sig figs are 2...therefore, water temperature = 49 C
2006-09-26 13:33:37 · answer #3 · answered by The ~Muffin~ Man 6 · 0⤊ 3⤋
Oh mann, this's one of my most dreaded areas of chemistry :(
Sorry, but think i won't be able to help!
2006-09-26 13:27:27 · answer #4 · answered by chemistry_freako 3 · 0⤊ 2⤋
rich r...point gaming. Reported!
2006-09-26 14:01:04 · answer #5 · answered by nammy_410 2 · 0⤊ 2⤋