m kg of liquid 'A' at 50°C is mixed with same mass of liquid 'B' at 30°C inside a calorimeter of negligible heat capacity. If equilibrium temperature is 4 2 ∘ C , then value of S B

Question

m kg of liquid 'A' at 50°C is mixed with same mass of liquid 'B' at 30°C inside a calorimeter of negligible heat capacity. If equilibrium temperature is 4 2 ∘ C , then value of S B ​ 2 S A ​ ​ is :-

TestHub · Accepted Answer

Heat lost = heat gained: m S A ​ ( 50 − 42 ) = m S B ​ ( 42 − 30 ) S B ​ S A ​ ​ = 8 12 ​ = 1.5 , so S B ​ 2 S A ​ ​ = 3.00 Answer 3.00

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