Q. 454.0( 1 Vote )

# In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): At constant temperature, pVvs 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.(i) Both A and R are true and R is the correct explanation of A.(ii) Both A and R are true but R is not the correct explanation of A.(iii) A is true but R is false.(iv) A is false but R is true.

(ii)

We know that at constant temperature, pV vs V plot for real gases is not a straight line.

This is because, for pV vs V graph to be straight line, the volume of the gas should be negligible, but it is not possible for the real gases, because they have some volume and hence they show deviation from the straight line.

Now discussing reason,

At high pressure all gases have Z > 1 but at intermediate pressure most gases have Z < 1, this statement is true but it is not the correct explanation of Assertion.

Hence, (ii) is correct option.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos  Laws of states of matter44 mins  Measurement of Pressure & Dalton's Law.64 mins  Interactive quiz on liquefaction44 mins  Liquefaction of gases53 mins  Gaseous state- interactive quiz56 mins  Interactive quiz on Kinetic Theory and Real Gas equation52 mins  Interactive quiz on Measurement of Pressure & Dalton's Law.49 mins  Interactive quiz on gas laws53 mins  Kinetic Theory and Real Gas equation60 mins  Gas laws | Everything you need to know60 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation view all courses 