A diatomic gas is heated at constant pressure. If `105J` of heat is given to the gas, find (a) the change in internal energy of the gas (b) the work done by the gas.

Explanation

To solve the problem, we will use the first law of thermodynamics and some properties of diatomic gases. Let's break it down step by step.

### Step 1: Understand the First Law of Thermodynamics
The first law of thermodynamics states that:
\[ \Delta Q = \Delta U + \Delta W \]
where:
...