For an adiabatic process, which of the following relations is correct?

Options

A. `Delta U = 0`
B. `P DeltaV = 0`
C. `q =0`
D. `q = +w`

Explanation

To solve the question regarding the correct relation for an adiabatic process, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of an Adiabatic Process**:
- An adiabatic process is defined as a thermodynamic process in which there is no heat exchange (Q) between the system and its surroundings. This means that the heat transfer (Q) is equal to zero.

2. **Apply the First Law of Thermodynamics**:
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