Verified Answer :

We know, Q = m.c.Δt
Here, m = 31 g
c= 4.186 J / g C
Δt = 65

Substitute their values, 
Q = 31 4.186 65
Q = 8434.79 J

In short, Your Answer would be 8434.79 Joules

Hope this helps!

Dave1357

It will be 6903 degree Celsius..

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