Two liquids A and B are at 32∘C and 24∘C. When mixed in equal masses the temperature of the mixture is
found to be 28∘C. Their specific heats are in the ratio of
A
3 : 2
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B
2 : 3
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C
1 : 1
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D
4 : 3
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Solution
The correct option is C 1 : 1 Heat lost by A = Heat gained by B ⇒mA×CA×(TA−T)=mB×CB×(T−TB)SincemA=mBandTemperatureofthemixture(T)=28∘C∴CA×(32−28)=CB×(28−24)⇒CACB=1:1