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During the melting of a slab of ice at 2...

During the melting of a slab of ice at 273K at atmospheric pressure,

A

Positive work is done by the ice-water system on the atmosphere .

B

Positive work is done on the ice-water system by the atmosphere.

C

the internal energy of ice- water system increases

D

The internal energy of the ice-water system decreases

Text Solution

Verified by Experts

The correct Answer is:
B, C
There is a decrease in volume during melting of an ice slab. Therefore negative work is done by the ice- water system on to the surrounding `implies W =-ve`
Heat is absorbed during melting
`implies Q = +ve implies DeltaU = Q -W = +ve`
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