Posted by opp on Wednesday, April 25, 2012 at 7:08pm.
Q = c(Al)•m(Al)•Δt + c(wat)•m(wat)• Δt =
=(930•0.6 +4180•4) •74 =1,278,572 J= =1.2•10^6 J = 1.2 MJ
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