Question

A, B and C are three liquids at 20°C, 30°C and 40°C respectively. If equal masses of A and B are mixed, the resultant temperature is 29°C. The equal masses of A and C are mixed, the resultant temperature is 33°C. Find the specific heats of A, B and C.

Answer 1

Suppose specific heats of liquids A, B and C are s , s and s respectively. Given that the temperatures of liquids are 20°C, 30°C and 40°C. 

Given that equal mass of A and B are mixed, the resultant temperature is 29°C.

Further given that equal masses of A and C are mixed, the resultant temperature is 33°C.