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(i)(I) E = Pt = 60 x 5 x 60 = 1800 J
(II) E = mLf
1800 = $\frac{60}{1000}$ x $L_f, L_f$ = 300, 000J/ kg
(ii) The temperature of the room melted some ice since it was higher than the melting point of ice.
johnmulu answered the question on May 27, 2017 at 08:58
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