Which of the following is zero for an isochoric process?

Options

A. `DeltaP`
B. `DeltaV`
C. `DeltaT`
D. `DeltaE`

Answer

To solve the question "Which of the following is zero for an isochoric process?", we will analyze the characteristics of an isochoric process step by step.

### Step 1: Understand the Definition of an Isochoric Process
An isochoric process is defined as a thermodynamic process in which the volume of the system remains constant. This means that there is no change in volume throughout the process.

**Hint:** Remember that "isochoric" means "constant volume."

### Step 2: Identify the Relevant Variables
In thermodynamics, we often deal with several state variables, including:
- Change in volume (ΔV)
- Change in pressure (ΔP)
- Change in temperature (ΔT)
- Change in internal energy (ΔU)

For an isochoric process, since the volume does not change, we can conclude that:
\[ \Delta V = 0 \]

**Hint:** Focus on the definition of isochoric to determine which variable is affected.

### Step 3: Analyze Other Variables
- **Change in Pressure (ΔP):** This can change during an isochoric process. For example, if the temperature increases, the pressure can increase while the volume remains constant.
- **Change in Temperature (ΔT):** This can also change during an isochoric process. The temperature may increase or decrease without any change in volume.
- **Change in Internal Energy (ΔU):** This is a state function and can change depending on the temperature change. If the temperature changes, the internal energy will change as well.

**Hint:** Consider how each variable can behave during a constant volume process.

### Step 4: Conclusion
Since the only variable that remains constant in an isochoric process is volume, we conclude that:
\[ \Delta V = 0 \]

Thus, the answer to the question is that the change in volume (ΔV) is zero for an isochoric process.

**Final Answer:** The correct option is ΔV = 0.