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Grade 11Thermal Physics

1kg of ice at -20C is mixed with 2kg of water at 90 C. assuming that there is no loss to the environment ,what will be the final temperature of the mixture?(assume latent heat of ice is 334.4KJ/Kg, specific heat of water and ice are 4.18 kj/(kg.K) and 2.09kj/(kg.K) respectively.

Profile image of AKSHAYA
8 Years agoGrade 11
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1 Answer

Profile image of Arun
8 Years ago
(2.09)(0 + 20) + (1)(334.4) + (1) (4.18)(T)
= (2) (4.18) (90 – T)
T = 30ºC
Hope it helps
Happy learning

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