Assertion : Molar volume of an ideal gas at 273 . 15 K and 1 bar is 22.4 L.
Reason : Volume of a gas is inversely proportional to temperature .

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 .

Explanation

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

### Step 1: Analyze the Assertion
The assertion states that "Molar volume of an ideal gas at 273.15 K and 1 bar is 22.4 L."

- The molar volume of an ideal gas at standard conditions (0°C or 273.15 K and 1 atm) is indeed approximately 22.4 L. However, at 1 bar, the molar volume is actually about 22.7 L.
- Therefore, the assertion is **incorrect**.

### Step 2: Analyze the Reason
The reason states that "Volume of a gas is inversely proportional to temperature."

- According to Charles's Law, the volume of a gas is directly proportional to its temperature when pressure is held constant. This means that as the temperature increases, the volume also increases, and vice versa.
- Therefore, the reason is also **incorrect**.

### Step 3: Conclusion
Since both the assertion and the reason are incorrect, we can conclude that the correct answer is that both the assertion and reason are false.

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

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