Calculate `q,w,DeltaU`, and `DeltaH` for this isothermal reversible expansion of 1mole of an ideal gas from an initial pressure of `1.0` bar to final pressure of `0.1`bar at a constant pressure of `273K`.

Explanation

To solve the problem of calculating \( q \), \( w \), \( \Delta U \), and \( \Delta H \) for the isothermal reversible expansion of 1 mole of an ideal gas, we can follow these steps:

### Step 1: Identify the Given Values
- Initial Pressure, \( P_1 = 1.0 \, \text{bar} \)
- Final Pressure, \( P_2 = 0.1 \, \text{bar} \)
- Temperature, \( T = 273 \, \text{K} \)
- Number of moles, \( n = 1 \)

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