Asked by zee

How many calories will it take to raise the temperature of a 36 g gold chain from 20°C to 110°C?
Answered by bobpursley
heat=mass*specific heat capacity*changeintem
changeintemp=90C
specificheatcapacitygold=0.129 J/gC
but one Joule=0.239 calorie , so
specificheat capacity gold= = 0.0308 cal/gC
mass=36g
do the math.
Answered by zee
My answer is 1.1088 because the specific heat capacity gold times the mass, is that the right answer.
0.0308 times the mass of 36 g
Answered by DrBob222
No, that isn't correct. What did you do with the change in temperature of 90 C?
Answered by zee
Ok, I tried 0.0308 times the mass of 36g divided by 90C, I got .0516, is that correct? Not sure what to do? Thanks
Answered by bobpursley
Multiply by change in Temp. * means times. I get near 100 Joules
Answered by zee
137, I just multplied
Answered by DrBob222
0.0308 x 36 x 90 = ? calories

I don't think that's 137.
Answered by zee
I got 99.792, then rounded to 99.8
Answered by zee
Got it! Thanks
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