Home
Class 12
PHYSICS
The pressure of an ideal gas is written ...

The pressure of an ideal gas is written as `p=(2E)/(3V)`.Here `E` refers to

A

Translational kinetic energy

B

Rotational kinetic energy

C

Vibrational kinetic energy

D

Total kinetic energy.

Text Solution

Verified by Experts

The correct Answer is:
A

As translation K.E. is
` E= (3)/(2) nRT " " E= (3)/(2)PV " " P = (2E)/(3V) `
Where E = Translation K.E.
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY

    PHYSICS WALLAH|Exercise NEET PAST 5 YEARS QUESTIONS |11 Videos
  • KINETIC THEORY

    PHYSICS WALLAH|Exercise NEET PAST 5 YEARS QUESTIONS |11 Videos
  • GRAVITATION

    PHYSICS WALLAH|Exercise NEET Past 5 Years Questions|13 Videos
  • LAWS OF MOTION

    PHYSICS WALLAH|Exercise NEET PAST 5 YEARS QUESTIONS |12 Videos

Similar Questions

Explore conceptually related problems

The pressure of an ideal gas is weitten as p=(2E)/(3V) .Here E refers to

The K.E. of one mole of an ideal gas is

The pressure P of an ideal gas and its kinetic energy E per unit volume are related as –

The pressure and volume of an ideal gas are related as p alpha 1/v^2 for process A rarrB as shown in figure . The pressure and volume at A are 3p_0 and v_0 respectively and pressure B is p_0 the work done in the process ArarrB is found to be [x-sqrt(3)]p_0v_0 find

van der Waal's equation for calculating the pressure of a non ideal gas is (P+(an^(2))/(V^(2)))(V-nb)=nRT van der Waal's suggested that the pressure exerted by an ideal gas , P_("ideal") , is related to the experiventally measured pressure, P_("ideal") by the equation P_("ideal")=underset("observed pressure")(underset(uarr)(P_("real")))+underset("currection term")(underset(uarr)((an^(2))/(V^(2)))) Constant 'a' is measure of intermolecular interaction between gaseous molecules that gives rise to nonideal behavior. It depends upon how frequently any two molecules approach each other closely. Another correction concerns the volume occupied by the gas molecules. In the ideal gas equation, V represents the volume of the container. However, each molecule does occupy a finite, although small, intrinsic volume, so the effective volume of the gas vecomes (V-nb), where n is the number of moles of the gas and b is a constant. The term nb represents the volume occupied by gas particles present in n moles of the gas . Having taken into account the corrections for pressure and volume, we can rewrite the ideal gas equation as follows : underset("corrected pressure")((P+(an^(2))/(V^(2))))underset("corrected volume")((V-nb))=nRT The van der Waals' constant 'a' for CO_(2) gas is greater than that of H_(2) gas. Its mean that the

van der Waal's equation for calculating the pressure of a non ideal gas is (P+(an^(2))/(V^(2)))(V-nb)=nRT van der Waal's suggested that the pressure exerted by an ideal gas , P_("ideal") , is related to the experiventally measured pressure, P_("ideal") by the equation P_("ideal")=underset("observed pressure")(underset(uarr)(P_("real")))+underset("currection term")(underset(uarr)((an^(2))/(V^(2)))) Constant 'a' is measure of intermolecular interaction between gaseous molecules that gives rise to nonideal behavior. It depends upon how frequently any two molecules approach each other closely. Another correction concerns the volume occupied by the gas molecules. In the ideal gas equation, V represents the volume of the container. However, each molecule does occupy a finite, although small, intrinsic volume, so the effective volume of the gas vecomes (V-nb), where n is the number of moles of the gas and b is a constant. The term nb represents the volume occupied by gas particles present in n moles of the gas . Having taken into account the corrections for pressure and volume, we can rewrite the ideal gas equation as follows : underset("corrected pressure")((P+(an^(2))/(V^(2))))underset("corrected volume")((V-nb))=nRT For non-zero value of force of attraction between gas moleculer at large volume, gas equation will be :

van der Waal's equation for calculating the pressure of a non ideal gas is (P+(an^(2))/(V^(2)))(V-nb)=nRT van der Waal's suggested that the pressure exerted by an ideal gas , P_("ideal") , is related to the experiventally measured pressure, P_("ideal") by the equation P_("ideal")=underset("observed pressure")(underset(uarr)(P_("real")))+underset("currection term")(underset(uarr)((an^(2))/(V^(2)))) Constant 'a' is measure of intermolecular interaction between gaseous molecules that gives rise to nonideal behavior. It depends upon how frequently any two molecules approach each other closely. Another correction concerns the volume occupied by the gas molecules. In the ideal gas equation, V represents the volume of the container. However, each molecule does occupy a finite, although small, intrinsic volume, so the effective volume of the gas vecomes (V-nb), where n is the number of moles of the gas and b is a constant. The term nb represents the volume occupied by gas particles present in n moles of the gas . Having taken into account the corrections for pressure and volume, we can rewrite the ideal gas equation as follows : underset("corrected pressure")((P+(an^(2))/(V^(2))))underset("corrected volume")((V-nb))=nRT AT relatively high pressures, the van der Waals' equation of state reduces to

The energy density u/V of an ideal gas is related to its pressure P as

Pressure of an ideal gas is given by P=P_(0)=[1-(1)/(2)((V_(0))/(V))^(2)]

PHYSICS WALLAH-KINETIC THEORY -LEVEL- 2
  1. Find the ratio of the mean speed of hydrogen molecules to the mean spe...

    Text Solution

    |

  2. Given molecular weight of hydrogen molecule is M = 2.016 xx 10^(-3) kg...

    Text Solution

    |

  3. The pressure of an ideal gas is written as p=(2E)/(3V).Here E refers t...

    Text Solution

    |

  4. Which of the following quantities is the same for all ideal gases at t...

    Text Solution

    |

  5. Let Delta U1 and Delta U2 be the changes in energy of the system in ...

    Text Solution

    |

  6. In the following V - T diagram what is the relations between P1 and P...

    Text Solution

    |

  7. An ideal gas is allowed to expand freely against vacuum in a rigid in...

    Text Solution

    |

  8. A gas undergoes a process in which its pressure P and volume V are rel...

    Text Solution

    |

  9. V = k((P)/(T))^(0.33) where k is constant. It is an,

    Text Solution

    |

  10. The internal energy of one mole mono-atomic gas is

    Text Solution

    |

  11. 10 moles of an ideal monoatomic gas at 10^(@)C are mixed with 20 moles...

    Text Solution

    |

  12. During an adiabatic process. The pressure of a gas is to be proportion...

    Text Solution

    |

  13. The change in internal energy , when a gas is cooled from 927^(@) " t...

    Text Solution

    |

  14. A gas is formed of molecules each molecules possessing f degrees of fr...

    Text Solution

    |

  15. If at the same temperature and pressure, the densities of two diatomic...

    Text Solution

    |

  16. According to the law of equipartition of energy, the energy associated...

    Text Solution

    |

  17. Equations for an ideal gas is :

    Text Solution

    |

  18. Significance of a and b in vander - Waal's equations

    Text Solution

    |

  19. A real gas behaves like an ideal gas if its

    Text Solution

    |

  20. Ratio of average kinetic energy of H2 and O2 at a given temperature ...

    Text Solution

    |