Which of the following statements is/ are incorrect? (A) Work is the product of a constant force necessary to move a body and the distance through which the body is moved. B If a plane surface is submerged vertically in a liquid, then the liquid, due to its weight, exerts a force normal to the plane of the submerged surface. A solid of revolution is the solid generated by revolving a solid area about an axis in its plane. D) All statements are correct E The purpose of algebraic substitution is to rationalize irrational integrands and it involves the replacement of a radical expression with a new variable.
Kinetic Theory of Gas
The Kinetic Theory of gases is a classical model of gases, according to which gases are composed of molecules/particles that are in random motion. While undergoing this random motion, kinetic energy in molecules can assume random velocity across all directions. It also says that the constituent particles/molecules undergo elastic collision, which means that the total kinetic energy remains constant before and after the collision. The average kinetic energy of the particles also determines the pressure of the gas.
P-V Diagram
A P-V diagram is a very important tool of the branch of physics known as thermodynamics, which is used to analyze the working and hence the efficiency of thermodynamic engines. As the name suggests, it is used to measure the changes in pressure (P) and volume (V) corresponding to the thermodynamic system under study. The P-V diagram is used as an indicator diagram to control the given thermodynamic system.
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