One gm mole of an ideal gas at S.T.P is subjected to a reversible adiabatic expansion to double its volume. Find the change in internal energy in the process. Given `gamma = 1. 4 [E.Q.]`

Explanation

To solve the problem of finding the change in internal energy during a reversible adiabatic expansion of one gram mole of an ideal gas, we will follow these steps:

### Step-by-Step Solution:

1. **Understanding the Process**:
- We have one mole of an ideal gas at Standard Temperature and Pressure (STP).
- The gas undergoes a reversible adiabatic expansion to double its volume.

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