Home
Class 11
PHYSICS
Estimate the total number of air molecul...

Estimate the total number of air molecules (inclusive of oxygen, nitrogen, water vapour and other constituents) in a room of capacity 25.0 m3 at a temperature of 27°C and 1 atm pressure.

Text Solution

Verified by Experts

Here, P = 1 atm = 1 x 1.01 x 105 Pa, V = 25.0 m3, T = 27°C = 27 + 273 = 300 K and R = 8.31 J mol-1 K-1
Promotional Banner

Topper's Solved these Questions

  • KINEMATICS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED (SHORT ANSWER QUESTIONS - 1 (3 MARKS))|14 Videos

  • HEAT AND THERMODYNAMICS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED (Numerical Problems)|16 Videos

  • KINETIC THEORY OF GASES

    FULL MARKS|Exercise Addtional Numerical Problems|10 Videos

Similar Questions

Explore conceptually related problems

Estimate the total number of molecules inclusive of oxygen, nitrogen, water vapour and other constituents in a room of capacity 30m^(3) at a temperature of 30^(@)C and 1 atmosphere pressure.

Estimate the total number of air molecules in a room of capacity 25m^(3) at a temperature of 27^(@)C .

Estimate the mean free path and collision frequency of a nitrogen molecule in a cylinder containing nitrogen at 2.0 atm and temperature 17°C. Take the radius of a nitrogen molecule to be roughly 1.0 A. Compare the collision time with the time the molecule moves freely between two successive collisions (Molecular mass of N2 = 28.0 u).

Find the number of molecules in 1cm^(3) of an ideal gas at 0^(@)C and at a pressure of 10^(-5)mm of mercury.