. State Pascal’s law of transmission of fluid pressure.
7. What is the efficiency of Carnot engine when the temperature of source and sink are equal?
8. Define mean free path of a gas molecule.
Answers
Answer:
Pascal's law says that pressure applied to an enclosed fluid will be transmitted without a change in magnitude to every point of the fluid and to the walls of the container. The pressure at any point in the fluid is equal in all directions.
6) Proof the pascal's law.
- Hint: Pascal's law states that in a closed container if the fluid is in a rest condition (not
moving) then a pressure change in one part of the container is transmitted to every part of the fluid and to the wall. In this phenomenon there is no loss of the fluid.
7) The efficiency of a Carnot's engine at a particular source and sink temperature is 12 . When the sink temperature is reduced by 100∘C, the engine efficiency, becomes 23.
8)In the kinetic theory of gases, the mean free path of a particle, such as a molecule, is the average distance the particle travels between collisions with other moving particles.