Asked by John

How many calories will it take to raise the temperature of a 41 g gold chain from 20°C to 100°C?
The answer is 102 calories. I've tried everything and can't come up with that answer. Does someone have any idea what was used for a formula?
Thanks
Answered by Scott
heat = mass * temp change * specific heat

make sure the units are consistent
Answered by John
I understand the formula. I haven't been able to get a correct answer. I don't know what I'm doing wrong.
Thanks though.
Answered by bobpursley
post your work, so we can find your error. It probably is in the units.
Answered by John
80 x 41 x .129 wrong
80 x 41 x .03 wrong
Thanks







Answered by bobpursley
80g x 80C x ?

your .129 is Joules/gC which is the wrong unit.
converting that to calories, I get .0308 C/gC
so the units tell me it is
80C*41g*.0308calories/gC
There are no AI answers yet. The ability to request AI answers is coming soon!