Properties Of Solids And Liquids Question 33

Question: 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 [DPMT 1996]

Options:

A) 3 : 2

B) 2 : 3

C) 1 : 1

D) 4 : 3

Show Answer

Answer:

Correct Answer: C

Solution:

Temperature of mixture θmix=θAcA+θBcBcA+cB

therefore 28=32×cA+24×cBcA+cB

therefore 28cA+28cB=32cA+24cB

therefore cAcB=11



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