Molecular Physics | Thermodynamics Answers

What is triple point .

The mean speed of the molecules of an ideal gas is −  3 1 2.0 10 ms .The radius

of a gas molecule is −  10 1.5 10 m.Calculate the (i) collision frequency, and

(ii) mean free path. It is given that n = 4  1024 m^−3.

Discuss the free electron model and its failures

The potential energy of a system of two atoms is given by the expression:

𝑈 = − 𝐴 𝑟

2 ⁄ + 𝐵 𝑟

10 ⁄

A stable molecule is formed with release of 8.0 eV of energy when the interatomic distance is 

2.8 Å. 

i. Calculate A and B. [4 marks]

ii. Determine the force needed to dissociate this molecule into atoms and the interatomic 

distance at which the dissociation occurs. 

A 6-kg block lies on an inclined plane that slopes at 30 degrees to the horizontal. Determine the external force applied on the block parallel to the slope that causes the block to accelerate at 2 m/s² down the slope. Assume that the coefficient of kinetic friction between the block and the plane is 0.2.

The potential energy of a system of two atoms is given by the expression:

𝑈 = − 𝐴 𝑟

2 ⁄ + 𝐵 𝑟

10 ⁄

A stable molecule is formed with release of 8.0 eV of energy when the interatomic distance is 

2.8 Å. 

i. Calculate A and B

Hello I need help in solving this problem. Thank you in advance and God Bless.

Solve the following problems.

1. The x-coordinates of an object at time t = 1.00 s and t = 4.00 s are 3.00 m and 5.00 m respectively. Calculate the average velocity of the object on the time interval t = 1.00 s to 4.00 s. Construct and interpret the position-time graph, velocity-time graph and acceleration-time graph.

The length of half-wave antenna is at 30 MHz

A. 2.5 meter

B. 5 meter

C. 10 meter

D. 100 meter

Compare and contrast nuclear fission and fusion how are they the same and how are they different

Describe the three forms of thermal energy transfer.