Question 225: Thermodynamics & KTG

Question

A source supplies heat to a system at the rate of $1000 \mathrm{~W}$. If the system performs work at a rate of $200 \mathrm{~W}$. The rate at which internal energy of the system increases is

Accepted Answer

The rate of increase of internal energy of a system can be found using the first law of thermodynamics, which states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system.
In this case, the heat being supplied to the system is 1000 W and the work being done by the system is 200 W.
Therefore, the rate at which the internal energy of the system increases is:
1000 W (heat supplied) - 200 W (work done) = 800 W
So, the correct answer is 800 W.

Answer

600 W

Answer

1200 W

Answer

500 W

Answer

800 W

Thermodynamics & KTG

A source supplies heat to a system at the rate of 1000 \mathrm{~W}. If the system performs work at a rate of 200 \mathrm{~W}. The rate at which internal energy of the system increases is

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