Question

When 0.1 kg of copper of specific heat 418 J kgr'K-' is heated to 80°C was dropped into 0.05 kg of a certain liquid at 25°C contained in a copper calorimeter of mass 0.2 kg, the temperature rose to 35°C. What is the specific heat of the liquid?​

Answer 1

Explanation:

A liquid of mass m and specific heat c is heated to a temperature 2T. Another liquid of mass

2

m

and specific heat 2c is heated to a temperature T. If these two liquids are mixed, the resulting temperature of the mixture is

The specific heat of a substance varies with temperature t(

∘

C) as c=0.20+0.14t+0.023t

2

(cal/g

∘

C). The heat required to raise the temperature of 2g of substance from 5

∘

C to 15

∘

C will be

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