In an ideal gas at temperature T, the average force that a molecule applies on the walls of a closed container depends on T as Tq. A good estimate for q is :

  • Option 1)

    2

  • Option 2)

    1

  • Option 3)

    \frac{1}{2}

  • Option 4)

    \frac{1}{4}

 

Answers (1)

As we learnt in

Pressure of a gas -

P= \frac{1}{3}mn< v^{2}>
 

- wherein

m = mass of a molecule

n = number of molecule /volume

< v2 > = Rms velocity

 

 Force \alpha \frac{\alpha P}{dt} (Rate of change of momentum)

=\frac{mv^{2}}{L}

L is length of container  and v2 is mean square velocity 

v^{2}\alpha\ T

\therefore\ \;F \alpha\ T

Correct option is 2.


Option 1)

2

This is an incorrect option.

Option 2)

1

This is an incorrect option.

Option 3)

\frac{1}{2}

This the correct option.

Option 4)

\frac{1}{4}

This is an incorrect option.

Preparation Products

Knockout JEE Main April 2021 (One Month)

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Weekend Live Classes, Mentorship from our Experts, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 14000/- ₹ 4999/-
Buy Now
Knockout JEE Main May 2021

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Weekend Live Classes, Mentorship from our Experts, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 22999/- ₹ 9999/-
Buy Now
Test Series JEE Main May 2021

Unlimited Chapter Wise Tests, Unlimited Subject Wise Tests, Unlimited Full Mock Tests, Get Personalized Performance Analysis Report,.

₹ 6999/- ₹ 2999/-
Buy Now
Knockout JEE Main May 2022

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Weekend Live Classes, Mentorship from our Experts, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 34999/- ₹ 14999/-
Buy Now
JEE Main Rank Booster 2021

Booster and Kadha Video Lectures, Unlimited Full Mock Test, Adaptive Time Table, 24x7 Doubt Chat Support,.

₹ 13999/- ₹ 6999/-
Buy Now
Boost your Preparation for JEE Main 2021 with Personlized Coaching
 
Exams
Articles
Questions