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Assertion : At critical point, the densi...

Assertion : At critical point, the densities of gaseous and liquid states become same.
Reason : At critical point, gases behave ideally.

A

Assertion and reason both are correct statements and reason is correct explanation for assertion.

B

Assertion and reason both are correct statements but reason is not correct explanation for assertion.

C

Assertion is correct statement but reason is wrong statement.

D

Assertion is wrong statement but reason is correct statement.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the given assertion and reason question, we need to analyze both statements carefully. ### Step-by-Step Solution: 1. **Understanding the Assertion**: - The assertion states that "At critical point, the densities of gaseous and liquid states become same." - At the critical point, the distinction between the liquid and gas phases disappears. This means that the densities of the gas and liquid become equal at this point. 2. **Understanding the Reason**: - The reason states that "At critical point, gases behave ideally." - At the critical point, gases tend to behave more ideally because the intermolecular forces are minimized, and the gas particles are in a state where they can be treated as ideal gas particles. 3. **Analyzing the Relationship**: - The assertion is correct because, at the critical point, the densities of the gaseous and liquid states do indeed become the same. - The reason is also correct because gases exhibit ideal behavior at the critical point due to the conditions of temperature and pressure. 4. **Conclusion**: - Since both the assertion and the reason are correct, and the reason provides a correct explanation for the assertion, we conclude that both statements are true. ### Final Answer: Both the assertion and the reason are correct, and the reason is a correct explanation of the assertion. ---
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Knowledge Check

  • Assertion : At critical temperature, the densities of the gaseous and liquid phase become equal. Reason : At critical point, surface of separation between the lqiuid phase and the gaseous phase disappears.

    A
    Assertion and reason both are correct statements and reason is correct explanation for assertion.
    B
    Assertion and reason both are correct statements but reason is not correct explanation for assertion.
    C
    Assertion is correct statement but reason is wrong statement.
    D
    Assertion is wrong statement but reason is correct statement.

  • Assertion : At critical temperature, surface tension of liquids becomes zero. Reason : At critical temperature, intermolecular forces for liquids and gases become equal. Liquids can expand without restriction.

    A
    both Assertion and Reason are true and the Reason in the correct explanation of the Assertion.
    B
    both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
    C
    Assertion is true but the Reason is false.
    D
    both Assertion and Reason are false.

  • Beyond the critical point of H _(2)O

    A
    `H_(2)O` exists in a state of equilibrium with all phases
    B
    liquid water can no longer exist
    C
    only the solid phase can exist
    D
    `H_(2)O` can no longer exist as a molecule

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    In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as (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 assertion and reason are false. Q. Assertion: At critical temperature, surface tension of a liquid becomes zero. ltbr. Reason: At this temperature intermolecular forces for liquids and gases become equal. Liquid can expand without any restriction.

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