Question

A silver bar with a mass of 250.0 g is heated from 22.0°C to 68.5°C. How much heat does the silver bar absorb?

Answer 1

Answer:

Q = 2790 J

Explanation:

Mass of silver bar is 250 g

It is heated from 22.0°C to 68.5°C

The specific heat of silver is 0.240 J/g°C

It is required to find the heat absorb by the silver bar. The heat absorbed by an object when heated from one temperature to another is given by :

$Q=mc\Delta T\\\\Q=250\times 0.240\times (68.5-22)\\\\Q=2790\ J$

So, the heat absorbed by the silver bar is 2790 J.