Question

when a certain quantity of heat was supplied to a substance its temperature rose from 5C to 20C what will the final temperature of the substance if twice the amount of heat is removed from the sample?​

Answer 1

SOLUTION

We have the heat supplied at constant pressure as

or

Now using Charles law we have . Thus if volume is increased by 10% the temperature also increases by 10%. As the initial temperature is 273 K. The change in temperature is given as 27.3 K.

Thus we get

or

Now using we get

Now as heat supplied is same at constant volume we get

or

In centigrade scale. we get the answer as