A gas absorbs `120 J` of heat and expands against the external pressure of `1.10` atm from a volume of `0.5 L` to `2.0 L`. What is the change in internal energy? (`1 L atm = 101.3 J`)

Explanation

To find the change in internal energy (ΔU) of the gas, we will use the first law of thermodynamics, which states:

\[ \Delta U = Q + W \]

where:
- \( Q \) is the heat absorbed by the system,
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