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Assertion : Critical temperature of CO(2...

Assertion : Critical temperature of `CO_(2)" is "304 K,` it cannot be liquefied above 304 K.
Reason : At a certain temperature, volume `prop 1//` pressure.

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.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze the assertion and the reason provided. ### Step 1: Understand the Assertion The assertion states that the critical temperature of CO₂ is 304 K, and it cannot be liquefied above this temperature. - **Explanation**: The critical temperature of a substance is defined as the maximum temperature at which it can exist as a liquid. Above this temperature, no amount of pressure can liquefy the gas. Since the assertion specifies that the critical temperature of CO₂ is 304 K, it is true that CO₂ cannot be liquefied above this temperature. ### Step 2: Understand the Reason The reason states that at a certain temperature, volume is inversely proportional to pressure. - **Explanation**: According to the ideal gas law (PV = nRT), we can express volume (V) as V = nRT/P. This shows that volume is inversely proportional to pressure (P), which is indeed true. ### Step 3: Analyze the Relationship Between Assertion and Reason Now we need to determine if the reason provided is a correct explanation for the assertion. - **Explanation**: While both the assertion and the reason are true, the reason does not explain why CO₂ cannot be liquefied above its critical temperature. The assertion is based on the definition of critical temperature, while the reason discusses the relationship between volume and pressure, which is not directly related to the concept of critical temperature. ### Conclusion Both the assertion and the reason are true, but the reason is not the correct explanation for the assertion. Therefore, the correct answer is: **Option B: Both assertion and reason are true, but reason is not the correct explanation of assertion.** ---
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