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19 gm of water at 30 degree celcius and 5 gm of ice at -20 degree celcius are mixed find the final temperature

19 gm of water at 30 degree celcius and 5 gm of ice at -20 degree celcius are mixed find the final temperature

Grade:10

1 Answers

Apoorva Arora IIT Roorkee
askIITians Faculty 181 Points
6 years ago
To come to a common temperature, First of all the ice will come to 0 degrees
heat=m*s*change in temp=2000 joules
then the ice will melt
heat=m*latent heat of fusion= 1670 joules
therefore now water at 0 degrees will gain heat and water at 30 degrees will lose heat. and according to the conservation of heat we can calculate the common temperature.

Thanks and Regards
Apoorva Arora
IIT Roorkee
askIITians Faculty

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