Home
Class 11
PHYSICS
The mean kinetic energy of the molecules...

The mean kinetic energy of the molecules of an ideal gas is given by `E=2.07 times 10^-23 TJ.mol^-1` where T is temperature of the gas. Calculate the number of molecules to 1 litre of the gas at STP. What will be the average distance between the molecules?[Given standard atmosphere =`1.01 times 10^5 N.m^-2`]

Text Solution

Verified by Experts

The correct Answer is:
`2.68 times 10^23`
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES

    CHHAYA PUBLICATION|Exercise EXERCISE ( Hot Numerical problems)|22 Videos
  • KINETIC THEORY OF GASES

    CHHAYA PUBLICATION|Exercise ENTRANCE CORNER(Assertion -reason type)|6 Videos
  • KINETIC THEORY OF GASES

    CHHAYA PUBLICATION|Exercise EXERCISE ( Problem set -I)|23 Videos
  • HYDROSTATICS

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|1 Videos
  • MEASUREMENT AND DIMENSION OF PHYSICAL QUANTITY

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|18 Videos

Similar Questions

Explore conceptually related problems

The average kinetic energy of a molecule in a gas at STP is 5.6 times 10^-14erg . Find out the number of molecules per volume of the gas Given, density of mercury =13.6 g.cm^-3 .

Find out the kinetic energy of 2g of nitrogen gas at 27^@C . Given R=8.3 times 10^7 erg.mol^-1 K^-1 .

"The total kinetic energy of the molecules in an ideal gas with a volume V at pressure P and temperature T is equal to the total kinetic energy of the molecules present in the same volume of another ideal gas at the same pressure and at temperature 2T"-Justify the statement.

If, at a given temperature, the totla kinetic energy of the molecules in unit volume of an ideal gas be E, show that the pressure of the gas, P=2//3E .

Determine the number of molecules is 20 cm^3 of a gas at 27^@C and 76 cmHg pressure. Average kinetic energy per molecule at 27^@C=4 times 10^-14 erg and g=980 cm.s^-2 .

For a van der waals gas, b=5.0xx10^(-2)L*mol^(-1) . What is the diameter of a molecule of this gas?

Statement I: The total translational kinetic energy of all the molecules of a given mass of an ideal gas is 1.5 times the product of its pressure and its volume. Statement II: The molecules of a gas collide with each other and the velocities of the molecules change due to the collision.

Statement I: The total translation kinetic energy of all the molecules of a given mass of an ideal gas is 1.5 times the product of its pressure and its volume. Statement II: The molecules of a gas collide with each other and the velocities of the molecules change due to the collision.

Average velocity of the molecules of a gas is 400m*s^(-1) . At the same temperature, what will be rms velocity o the molecules?