Assertion : Macro properties of gas are affected with increase in height.
Reason : These properties of gases depend on thermodynamic parameters.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.

Answer

To solve the question, we need to analyze both the assertion and the reason provided.

### Step 1: Analyze the Assertion
The assertion states that "Macro properties of gas are affected with increase in height."

- Macro properties of gases, such as pressure, volume, and temperature, are indeed influenced by changes in height due to the gravitational field. However, in a typical scenario, the macro properties of gases in a large volume (like the atmosphere) do not change significantly with height because gases are compressible and can adjust to changes in pressure and temperature. Therefore, the assertion is **false**.

### Step 2: Analyze the Reason
The reason states that "These properties of gases depend on thermodynamic parameters."

- While it is true that the macro properties of gases depend on thermodynamic parameters (like temperature, pressure, and volume), this does not directly support the assertion made. The dependence on thermodynamic parameters does not imply that these properties are affected by height in a straightforward manner. Thus, the reason is also **false**.

### Conclusion
Since both the assertion and the reason are false, we can conclude that:

- The assertion is false.
- The reason is false.
- Therefore, the correct relationship between the assertion and reason is that both are incorrect.

### Final Answer
Both the assertion and the reason are false.

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