Question

When is the total heat observed by the system during the process used up in work?

Answer 1

Dear Student,

◆ Answer -

Total heat obsorbed by the system during the process is used up in work when internal energy of the system remains constant.

● Explaination -

• First law of thermodynamics states that the change in the internal energy of a closed system is equal to the amount of heat supplied to the system, minus the amount of work done by the system on its surroundings.

Change in internal energy = Heat absorbed - Work done

Heat absorbed = Work done + change in internal energy

• When change in internal energy is zero,

Heat absorbed = Work done

Thanks dear. Hope this helps you...