English
Karnataka Board PUCPUC Science Class 11

Compressibility factor, Z, of a gas is given as Z = pVnRT. For real gas what will be the effect on value of Z above Boyle’s temperature?

Advertisements
Advertisements

Question

Compressibility factor, Z, of a gas is given as Z = `(pV)/(nRT)`. For real gas what will be the effect on value of Z above Boyle’s temperature?

Short/Brief Note
Advertisements

Solution

For real gas, the value of Z > 1 above Boyle's temperature .

shaalaa.com
  Is there an error in this question or solution?
Chapter 5: States of Matter - Multiple Choice Questions (Type - I) [Page 58]

APPEARS IN

NCERT Exemplar Chemistry [English] Class 11
Chapter 5 States of Matter
Multiple Choice Questions (Type - I) | Q 32.(ii) | Page 58

RELATED QUESTIONS

Which of the following is the correct expression for the equation of state of van der Waals gas?


The value of the universal gas constant depends upon


Compressibility factor for CO2 at 400 K and 71.0 bar is 0.8697. The molar volume of CO2 under these conditions is


Maximum deviation from ideal gas is expected from


Which of the following diagrams correctly describes the behaviour of a fixed mass of an ideal gas? (T is measured in K)


Can a Van der Waals gas with a = 0 be liquefied? explain.


Explain whether a gas approaches ideal behavior or deviates from ideal behaviour if it is compressed to a smaller volume at a constant temperature.


Explain whether a gas approaches ideal behavior or deviates from ideal behaviour if the temperature is raised while keeping the volume constant.


Explain whether a gas approaches ideal behavior or deviates from ideal behaviour if more gas is introduced into the same volume and at the same temperature.


A plot of volume (V) versus temperature (T) for a gas at constant pressure is a straight line passing through the origin. The plots at different values of pressure are shown in Figure. Which of the following order of pressure is correct for this gas?


Under which of the following two conditions applied together, a gas deviates most from the ideal behaviour?

(i) Low pressure

(ii) High pressure

(iii) Low temperature

(iv) High temperature


If 1 gram of each of the following gases are taken at STP, which of the gases will occupy (a) greatest volume and (b) smallest volume?

\[\ce{CO, H2O, CH4 , NO}\]


Pressure versus volume graph for a real gas and an ideal gas are shown in figure. Answer the following questions on the basis of this graph.

(i) Interpret the behaviour of real gas with respect to ideal gas at low pressure.

(ii) Interpret the behaviour of real gas with respect to ideal gas at high pressure.

(iii) Mark the pressure and volume by drawing a line at the point where real gas behaves as an ideal gas.


Match the following graphs of ideal gas with their co-ordinates:

Graphical representation x and y co-ordinates
(i) (a) pV vs. V
(ii) (b) p vs. V
(iii) (c) p vs. `1/V`

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.


Isotherms of carbon dioxide gas are shown in figure. Mark a path for changing gas into liquid such that only one phase (i.e., either a gas or a liquid) exists at any time during the change. Explain how the temperature, volume and pressure should be changed to carry out the change.


In van der Waal's equation for the real gas, the expression for the net force of attraction amongst the gas molecules is given by:


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×