Home
Class 11
CHEMISTRY
Assertion (A) At constant temperature, p...

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 gt 1` but at intermediate pressure most gases have `Z lt 1`.

A

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

B

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

C

A is true but R is false.

D

A is false and R is true.

Text Solution

Verified by Experts

The correct Answer is:
B
Correct explanation. At high pressure, `Z gt 1`for real gases. Therefore, graph is not a straight line.
Promotional Banner

Similar Questions

Explore conceptually related problems

Assertion :- At constant temperature PV vs V plot for real gas is not a straight line. Reason :- At high pressure, all gases have Zgt1 but at low pressure most gases have Zlt1

Assertion : At constant temperature PV vs P plot for real gases is not a straight line . Reason : In the curves of dihydrogen and helium , as the pressure increases the value of PV also increases .

For ideal gases, Z = 1 at all temperature and pressure.

Why are all real gases practically incompressible at high pressures?

Assertion : Compressibility factor (Z) is the ratio of actual molar volume of a gas to the molar volume of it , if it were an ideal gas at that temperature and pressure . Reason : At high pressure all the gases have Z lt 1 and can be easily compressed .

Assertion : Gases become denser at high pressure . Reason : At high pressures , gases deviate from Boyle's law .

If different ideal gases are at the same temperature, pressure and have same volume, then all gases have same

A: A real gas will approach ideal behaviour at high temperature and low pressure. R: At low pressure and high temperature z = 1, for all gases

Assertion:A constant volume gas thermometer, reads temperature in terms of pressure. Reason : In this case a plot of Pressure versus temperature gives a straight line.

At constant temperature, the effect of change of pressure on volume of a gas was as given below Plot the following graphs : P vs 1/V