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Assertion (A): At constant temperature, pV vs V plot for real gases is not a straight line. Reason (R): At high pressure all gases have Z > 1 but at intermediate pressure most gases have Z < 1. - Chemistry

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Question

Assertion (A): At constant temperature, pV vs V plot for real gases is not a straight line.

Reason (R): At high pressure all gases have \[\ce{Z}\] > 1 but at intermediate pressure most gases have \[\ce{Z}\] < 1.

Options

  • Both A and R are true and R is the correct explanation of A.

  • Both A and R are true but R is not the correct explanation of A.

  • A is true but R is false.

  • A is false but R is true.

MCQ
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Solution

Both A and R are true but R is not the correct explanation of A.

Explanation:

At constant temperature, the pV vs V plot for real gases is not a straight line because there is intermolecular attraction present in real gases which is absent in ideal gases; hence ideal gases form a straight line in the pV vs V plot at constant temperature.

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Chapter 5: States of Matter - Multiple Choice Questions (Type - I) [Page 61]

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NCERT Exemplar Chemistry [English] Class 11
Chapter 5 States of Matter
Multiple Choice Questions (Type - I) | Q 45 | Page 61

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