10 kg of ice at 
is added to 100 kg of water to lower its temperature from 
. Consider no heat exchange to surroundings. The decrement to the temperature of water is 
.
(specific heat of ice 
, specific heat of water 
, latent heat of fusion of ice 
)
Text Solution
Verified by ExpertsThe correct answer is:
D
Heat available from water cooling 
to 
: 
.
Heat to warm ice from 
to 
: 
.
Heat to melt ice at 
: 
.
Total needed: 
.
Since available heat exceeds required heat, all ice melts. Remaining heat: 
warms 110 kg water: 
.
Final temperature: 
.
Decrement in water temperature: 
.
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