Question
Find out the water equivalent and thermal capacity of a calorimeter made of 100 g of copper (s = 0.09 cal/g/°C). [Ans. 9 g, 9 cal/°C]
Answer
To find the water equivalent and thermal capacity of the calorimeter, we need to use the formula:
Water Equivalent = Mass of the calorimeter × Specific heat of the calorimeter
Thermal Capacity = Water Equivalent × Specific heat of water
Given:
Mass of the calorimeter (m) = 100 g
Specific heat of the calorimeter (s) = 0.09 cal/g/°C
Water Equivalent = 100 × 0.09 = 9 g
Thermal Capacity = 9 × 1 = 9 cal/°C
Therefore, the water equivalent of the calorimeter is 9 g, and its thermal capacity is 9 cal/°C.
