11th Physics Monthly Test - 4 ( Kinetic Theory of Gases )

MABS Institution

11th Physics Monthly Test - 4 ( Kinetic Theory of Gases )-Aug 2020

Time : 2.00 Hours

Part - A

Generic 5 - Answer All Question

Find the adiabatic exponent \(\gamma\) for mixture of μ₁ moles of monoatomic gas and μ₂ moles of a diatomic gas at normal temperature

Explain the pressure exerted in a gas column.

0.014 kg of nitrogen is enclosed in a vessel at a temperature of 27°C. How much heat has to be 'transferred to double the rms speed of its molecules.

An oxygen molecule is travelling in air at 300 K and 1 atm, and the diameter of oxygen molecule is 1.2 × 10⁻¹⁰m. Calculate the mean free path of oxygen molecule.

Ten particles are moving at the speed of 2, 3, 4, 5, 5, 5, 6, 6, 7 and 9 m s-1. Calculate rms speed, average speed and most probable speed.

A room contains oxygen and hydrogen molecules in the ratio 3:1. Th e temperature of the room is 27°C. The molar mass of 02 is 32 g mol-1 and for H₂ 2 g mol^-1. The value of gas constant R is 8.32 J mol^-1 K^-1.
Calculate
(a) rms speed of oxygen and hydrogen molecule
(b) Average kinetic energy per oxygen molecule and per hydrogen molecule
(c) Ratio of average kinetic energy of oxygen molecules and hydrogen molecules.

Calculate the rms speed, average speed and the most probable speed of 1 mole of hydrogen molecules at 300 K. Neglect the mass of electron.

Explain postulates of the kinetic theory of gases.

Motor volume is occupied 1 mole of any (ideal) gas at standard temperature and pressure. Show that it is 22.4 litres.

Speed of an atom in an argon gas cylinder equal to the rms speed of a helium gas atom at -20°C? [Atomic mass of Ar =39.90, He =4.04]

One mole of a monoatomic gas is mixed with three moles of a diatomic gas. What is the molecules specific heat of the mixture at constant volume? [8.311moI^-1K^-1]

State Newton's law of cooling verify with an experiment.

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11th Physics Monthly Test - 4 ( Kinetic Theory of Gases )

MABS Institution

11th Physics Monthly Test - 4 ( Kinetic Theory of Gases )-Aug 2020

Part - A

Generic 5 - Answer All Question

Find the adiabatic exponent \(\gamma\) for mixture of μ1 moles of monoatomic gas and μ2 moles of a diatomic gas at normal temperature

Explain the pressure exerted in a gas column.

0.014 kg of nitrogen is enclosed in a vessel at a temperature of 27°C. How much heat has to be 'transferred to double the rms speed of its molecules.

An oxygen molecule is travelling in air at 300 K and 1 atm, and the diameter of oxygen molecule is 1.2 × 10−10m. Calculate the mean free path of oxygen molecule.

Ten particles are moving at the speed of 2, 3, 4, 5, 5, 5, 6, 6, 7 and 9 m s-1. Calculate rms speed, average speed and most probable speed.

Calculate the rms speed, average speed and the most probable speed of 1 mole of hydrogen molecules at 300 K. Neglect the mass of electron.

Explain postulates of the kinetic theory of gases.

Motor volume is occupied 1 mole of any (ideal) gas at standard temperature and pressure. Show that it is 22.4 litres.

Speed of an atom in an argon gas cylinder equal to the rms speed of a helium gas atom at -20°C? [Atomic mass of Ar =39.90, He =4.04]

One mole of a monoatomic gas is mixed with three moles of a diatomic gas. What is the molecules specific heat of the mixture at constant volume? [8.311moI-1K-1]

State Newton's law of cooling verify with an experiment.

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Find the adiabatic exponent \(\gamma\) for mixture of μ₁ moles of monoatomic gas and μ₂ moles of a diatomic gas at normal temperature

An oxygen molecule is travelling in air at 300 K and 1 atm, and the diameter of oxygen molecule is 1.2 × 10⁻¹⁰m. Calculate the mean free path of oxygen molecule.

One mole of a monoatomic gas is mixed with three moles of a diatomic gas. What is the molecules specific heat of the mixture at constant volume? [8.311moI^-1K^-1]