Asked by Katherina Ramos
The amount of heat required to raise 200 g of aluminum by 10 degrees celsius if its specific heat is 0.897 J/gC ?
I need help. This is all confusing.
I need help. This is all confusing.
Answers
Answered by
Damon
Just look at the units:
Joules = Joules/gram deg C * grams * deg C
grams cancel
deg C cancels
left with Joules
= .897 * 200 * 10 Joules
= 1794 Joules
Joules = Joules/gram deg C * grams * deg C
grams cancel
deg C cancels
left with Joules
= .897 * 200 * 10 Joules
= 1794 Joules
Answered by
MathMate
m=200 g
c=0.897 J/g°C
ΔT=10°C
Calculate heat required, ΔQ using
ΔQ=mcΔT
Answered by
Katherina Ramos
Oh, okay. You multiply the numbers. I was dividing it for some reason. Thank you, you are a lifesaver.
Answered by
MathMate
As Damon said, check the units.
If you divide, the units do not give joules.
If you divide, the units do not give joules.
Answered by
Damon
You are welcome :)
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