Question

One mole of a gas absorbs 200 J of heat at constant
volume. Its temperature rises from 298 K to 308 K.
The change in internal energy is -​

Answer 1

Answer:

At constant volume change in internal energy equals to energy absorbed.

so it will be

E = 200 J

Hope it is clear!

Answer 2

The change in internal energy is 200 J

Explanation:

According to first law of thermodynamics:

$\Delta E=q+w$

$\Delta E$ = Change in internal energy

q = heat absorbed or released = 200 J

w = work done or by the system

w = work done by the system = $-P\Delta V$  {Work is done by the system as the final volume is greater than initial volume and is negative}

As, the system is present at constant volume, $\Delta V=0$

So,

$w=-P\Delta V=0$

Putting values in above equation, we get:

$\Delta E=q=200J$

Learn More about first law of thermodynamics:

https://brainly.in/question/6338395

#learnwithbrainly