The relation between U, P and V for an iodeal gas is U=2+3PV. What is the atomicity of the gas.

Explanation

To solve the problem, we need to determine the atomicity of the gas given the relation \( U = 2 + 3PV \).

### Step-by-Step Solution:

1. **Understand the Relation**: We have the equation \( U = 2 + 3PV \). Here, \( U \) is the internal energy, \( P \) is the pressure, and \( V \) is the volume of the gas.

2. **Use the First Law of Thermodynamics**: The first law states that \( dQ = dU + dW \). For an adiabatic process, \( dQ = 0 \), which implies:
\[
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