Q.

Heat energy of 184 kJ is given to ice of mass 600 g at 12C . Specific heat of ice is 2222.3Jkg10C1 and latent heat of ice in 336kJ/kg1
A. Final temperature of system will be 00C
B. Final temperature of system will be greater than 00C
C. The final system will have a mixture of ice and water in the ratio of 5:1
D. The final system will have a mixture of ice and water in the ratio of 1:5
E. The final system will have water only
Choose the correct answer from the options given below:

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a

B and D only

b

A and D only

c

A and C only

d

A and E only

answer is D.

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Detailed Solution

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Q1=msΔt=0.6×2222.3×12=16000.56J16KJ
For complete melting
Qrequired =mL=0.6×336=201.6KJ
All ice do not melt.
Mass of ice melted =184kJ16kJ336kJ=0.5kg
Final mixture has 0.5kg water and 0.1 kg ice at 00c

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