Posted by **Justin** on Friday, October 28, 2011 at 2:30am.

how many kilojoules of heat must be transferred to a 480 g aluminum pizza pan to raise its temperature from 22 degree c to 234 degree c? The specific heat of aluminum in this temperature range is 0.97 J/g degree C.

- science -
**Jai**, Friday, October 28, 2011 at 3:25am
recall that heat absorbed released is given by

Q = mc*(T2 - T1)

where

m = mass (in g)

c = specific heat capacity (in J/g-k)

T = temperature (in C or K)

*note: Q is (+) when heat is absorbed and (-) when heat is released.

substituting,

Q = (480)*(0.97)*(234 - 22)

Q = 98707 J = 98.7 kJ

hope this helps~ :)

- science -
**Anonymous**, Tuesday, March 17, 2015 at 11:55am
iqj

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