UrbanPro

Take Class 11 Tuition from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Search in

Show that the average kinetic energy of a molecule of an ideal gas is directly proportional to the absolute temperature of the gas.

Asked by Last Modified  

Follow 1
Answer

Please enter your answer

Executive Trainer

Here is the proof for the question According to the kinetic equation of pressure of a gas: P = r 1/3 But r = density of gas r = density of gas = mass of gas / volume of gas r = density of gas = mN / V Putting...
read more

Here is the proof for the question

 

According to the kinetic equation of pressure of a gas:

 

                                   P = r 1/3 

 

But r = density of gas
                        r = density of gas = mass of gas / volume of gas
                        r = density of gas = mN / V
Putting the value of density (r)

 

P = 1/3 (mN / V ) 
P V= 1/3 (mN) 

 

 But PV = nRT
putting the value of PV, we get,

 

nRT= 1/3 (mN) 

 

Since
number of mole (n) = molecules/Avogadro’s number
number of mole (n) = N/NA

 

Therefore,

 

[N/NA] R T= 1/3 (mN) 
NA R T= 1/3 (m) 
3 [NA R] T= (m) 

But NA R = Boltzman’s constant (K), thus,

3 K T= (m) 

 

Multiplying both sides by 1/2

 

(3/2) K T= (1/2) m

 

(1/2) m = (3/2) K T

But (1/2) m = average translational kinetic energy of gas molecules = (K.E)av
therefore,

(K.E)av = (3/2) K T

As (3/2) K is a constant term, therefore,

 

(K.E)av = (constant) T

 

read less
Comments

Related Questions

Action and reaction forces do not balance each other. Why?
Let's say you push the wooden block, it is true the the block pushes you back with the same force. However, this does not mean that the force that you are exerting on the block has got cancelled. The wooden...
Anurag
0 0
5
A shell of mass 0.020kg is fired by a gun of mass 100kg. If the muzzle speed of the shell is 80m/s, what is the recoil speed of the gun?
Mass of the gun, M = 100 kg Mass of the shell, m = 0.020 kg Muzzle speed of the shell, v = 80 m/s Recoil speed of the gun = V Both the gun and the shell are at rest initially. Initial momentum of the system...
Rasneet
0 0
5
how many type of rcc beam are there?
It is of four types. 1.Simply supported beam or simple beam 2. Semi continuous beam 3. Continuous 4. Cantilever beam
Rahul
Friction is a self adjusting force. Justify.
When you move an object over any surface in any direction, frictional force acts in the opposite direction (as per definition - it is an opposing force). If you change the direction of the object, friction...
Jacob
0 0
6
A railway carriage of mass 9000 kg moving with a speed of 36 kmph collides with stationary carriage of the same mass. After the collision, the carriages get coupled and moved together. What is their common speed after collision? What type of collision is this?
The objects move together after the collision and have a common velocity. So it's a perfectly inelastic collision. To find the velocity we use Law of conservation of linear momentum. Given velocity v1=...
Vinay
0 0
7

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

why 200 volt AC is more dangerous than 220 volt DC???
current or voltage we measure for AC are alaways rms(root mean square) value not the actual magnitude so 220 volt ac(rms)= 220*sqrt(2)=311 volt but 220 volt DC alaways gives the magnitude...

Acceleration due to gravity and its variation with altitude, depth and rotation of earth   I. Expression for acceleration due to gravity: Consider earth to be a sphere of radius 'R' and mass 'Me'....
R

Ratan Deshpande

0 0
0

Can the position time-graph have a negative slope?
Yes, when the velocity of the body is negative
C

Chandra Mohan Yadavalli

0 0
0

Calculate the radii of (i) the third orbit of He+ ion and (ii) the second orbit of Li2+ ion.
QUESTION The radius of first Bohr orbit of hydrogen atom is 0.529 A. Calculate the radii of (i) the third orbit of He+ ion and (ii) the second orbit of Li2+ ion. ANSWER

Recommended Articles

While schools provide formal education to the children, the home is where they start learning about things informally. Parents think that schools will take the initiative to educate their children. Well, this is partially true, as parents also play an essential role in bringing up their child. For the development of particular...

Read full article >

With the mushrooming of international and private schools, it may seem that the education system of India is healthy. In reality, only 29% of children are sent to the private schools, while the remaining head for government or state funded education. So, to check the reality of Indian education system it is better to look...

Read full article >

E-learning is not just about delivering lessons online. It has a much broader scope that goes beyond manual paper or PowerPoint Presentations. To understand the reach of E-learning and how the whole process works in developing the Educational system, we will discuss a few points here. Let us find out how this new learning...

Read full article >

Appearing for exams could be stressful for students. Even though they might have prepared well, they could suffer from anxiety, tension etc. These are not good for their health and mind. However, following a few exam preparation tips can save them from all these and help them to score good marks. Let’s find out all...

Read full article >

Looking for Class 11 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for Class 11 Tuition Classes?

The best tutors for Class 11 Tuition Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Take Class 11 Tuition with the Best Tutors

The best Tutors for Class 11 Tuition Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more