A sample of ideal gas `(gamma = 1.4)` is heated at constant pressure. If `140 J` of heat is supplied to gas, find `DeltaU` and `W`.

Explanation

To solve the problem, we need to find the change in internal energy (ΔU) and the work done (W) when an ideal gas is heated at constant pressure with 140 J of heat supplied. Given that the specific heat ratio (γ) is 1.4, we can follow these steps:

### Step 1: Understand the relationship between heat, work, and internal energy
According to the first law of thermodynamics, we have:
\[ \Delta U = Q - W \]
Where:
- ΔU = change in internal energy
- Q = heat added to the system
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