Home
Class 11
CHEMISTRY
The behaviour of a real gas is usually d...

The behaviour of a real gas is usually depicted by plotting compressibility factor Z versus P at a constant temperature. At high temperature and high pressure, Z is usually more than one. This fact can be explained by van der Waals equation when

A

the constant 'a' is negligible and not ‘b’

B

the constant ‘b’ is negligible and not 'a'

C

both constant 'a' and 'b' are negligible

D

both the constant 'a' and ‘b’ are not negligible

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • STATES OF MATTER

    PATHFINDER|Exercise QUESTION BANK|46 Videos

  • THERMODYNAMICS

    PATHFINDER|Exercise QUESTION BANK|433 Videos

Similar Questions

Explore conceptually related problems

A real gas follows van der waals equation. Find the compressibility for 1 mol of the gas at its critical temperature.

if Z is a compressibility factor, van der waals equation at low pressures can be written as

What will the value of compressibility factor (Z) be for a gas if the pressure correction term in the van der waals equation for the gas is neglected?

The compressibility factor (Z) of one mole of a van der Waals gas of negligible ‘a’ value is

Explain from vander Waal's equation that at very low pressure and at very high temperature the real gases behave as an ideal gases.

This question has Statement I and Statement II. Of the four choices given after the Statements, choose the one that best describes the two Statements. Statement -I: The compressibility factor(Z) for H2and He is greater than unity, Z=1+(Pb)/(RT) Statement - II: Compressibility factor for H_2 and He may be calculated using van der Waals’ equation neglecting van der Waals’ constant ‘a’.

A real gas follows the equation P(V-ab)=nRT under all conditions of temperature and pressure. Show that the compressibility factor of this gas is always greater than one.

Using van der waals equation, explain why real gases behave like an ideal gas at very low pressures and high temperature.

(i) The equation of state of a real gas is P(V-b)=RT. Can the gas be liquified? Explain. (ii) Sketch log P vs log V graph for a given mass of an ideal gas at constant temperature and indicate the slope.

PATHFINDER-STATES OF MATTER (GASES & LIQUIDS)-QUESTION BANK
  1. Consider an ideal gas contained in a vessel. If the intermolecular att...

    Text Solution

    |

  2. A real gas at a very high pressure occupies

    Text Solution

    |

  3. The behaviour of a real gas is usually depicted by plotting compressib...

    Text Solution

    |

  4. At Boyle’s temperature compressibility factor Z for a real gas is :

    Text Solution

    |

  5. The inversion temperature Ti(K) of hydrogen is (Given van der Waal’s c...

    Text Solution

    |

  6. Triple point of water exists at

    Text Solution

    |

  7. Excluded volume of a gas will be larger, if (Tc)/(Pc) is

    Text Solution

    |

  8. The critical temperature of O2 is less than. H2O because the H2O molec...

    Text Solution

    |

  9. What happens when ammonium dichromate is heated ?

    Text Solution

    |

  10. The work done which is to be required to increase the area of soap fil...

    Text Solution

    |

  11. Which of the following graphs correctly represents the variation of B...

    Text Solution

    |

  12. Two thermal insulated vessels 1 and 2 are filled with air at temperatu...

    Text Solution

    |

  13. Calculate the number of moles in the glass bulb shown in figure at 300...

    Text Solution

    |

  14. A gaseous mixture contains three gases A, B and C with a total number ...

    Text Solution

    |

  15. X mL of H2 gas has effused through a hole in a container in 5 second....

    Text Solution

    |

  16. At identical temperature and pressure, the rate of diffusion of H2 ga...

    Text Solution

    |

  17. (plot of log P, where P = vapour pressure of liquid against 1/T) The s...

    Text Solution

    |

  18. Five molecules of a gas are moving with speed 1, 2, 3, 4, 5 km/sec. Wh...

    Text Solution

    |

  19. Most probable velocity of hydrogen molecules at T^@C is V0. At (2T+2...

    Text Solution

    |

  20. For a fixed mass of gas at constant pressure, which of the following s...

    Text Solution

    |