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80g of water at 30°C is poured on a large block of ice which is at 0°C. The mass of ice that melts is ___________

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80g of water at 30°C is poured on a large block of ice which is at 0°C. The mass of ice that melts is ___________

(a) 30g

(b) 80g

(c) 150g

(d) 1600g

This question was posed to me in an online interview.

Enquiry is from Latent Heat topic in portion Kinetic Theory of Gases of Engineering Physics I

1 Answer

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Best answer
Correct answer is (a) 30g

Best explanation: Heat used in melting m gram of ice = Heat lost by 80g water

mL=80×1×30

m=(80×1×30)/80=30g.

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