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When 140000 joules of heat is removed from 0.60kg of water initially at 20Celsius, will all the water freeze? If not how much remains unfrozen

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Q=cmΔT= 4186•0.6•20 = 50232 J.

ΔQ=Q₀-Q=140000-50232=89768 J

m₁=ΔQ/λ=89768/335000=0.268 J

M=0.6-0.268=0.332 kg

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