Question

How does heat affect pressure?

Answer 1

In order to write the answer of the given question, we need to know about the heat and pressure. Also, we need to know the effects of the heat. After that we can conclude with its effect with respect to the pressure and write the correct answer of the given question.

Complete step by step answer:
Step one
First of all let us define heat.
Heat can be defined as the form of energy which is transferred between the objects with different temperatures.
Similarly let us define pressure.
We can define pressure as the force applied per unit area.
Step two
Now, we know that when we heat any object, the molecules of that object start moving more quickly resulting in the increase of the velocities of the molecules and as a result the collision between the molecules increases. It means that more force is exerted on each of the molecules and as a result, the pressure inside it increases.
So, the heat affects the pressure.
Step three
Hence, we can say that on increasing the heat, the pressure of an object increases and by decreasing the heat, the pressure of an object decreases.

Note:
From Newton’s second law of motion, we know that the force is the rate of change of momentum. The momentum is the product of mass and velocity. Now, the molecules have their masses and when they are heated up they gain velocity and ultimately increase the momentum of the molecules of the object.