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September 18, 2014

September 18, 2014

Posted by **Justin** on Friday, October 28, 2011 at 2:36am.

- science -
**Jai**, Friday, October 28, 2011 at 3:39amrecall 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.

we're looking for (T2 - T1) here. substituting,

30000 = 390*3.9*(T2 - T1)

(T2-T1) = 19.72 K

hope this helps~ :)

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