Question

Work done by a system is 8j when 40j heat is supplied to it. The change in internal energy of the system during the process

Answer 1

The change in internal energy of the system during the process is 32 Joules.

Explanation:

Given that,

Work done by the system, W = -8 J (by the system is negative)

Heat supplied by the system, Q = +40 J

To find,

The change in internal energy of the system during the process

Solution,

Let $\Delta E$ is the change in internal energy of the system. According to the first law of thermodynamics, the change in internal energy is given by :

$\Delta E=Q+W$

$\Delta E=40+(-8)$

$\Delta E=32\ J$

So, the change in internal energy of the system during the process is 32 Joules.

Learn more,

Thermodynamics

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