When is the heat supplied to a system equal to the increase in its internal energy?

Explanation

To determine when the heat supplied to a system is equal to the increase in its internal energy, we can refer to the first law of thermodynamics, which is expressed by the equation:

\[ Q = U + W \]

Where:
- \( Q \) is the heat supplied to the system,
- \( U \) is the change in internal energy of the system,
- \( W \) is the work done by or on the system.
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