Difference between Heat and Temperature

Q.

Hotness of a body is

1. It is an absolute value

2. It is a relative value

Q.

Difference between vapour and gas

Q.

What will happen at molecular level if two bodies one hot and one cool are brought in contact with each other?

1. Molecules of cold object will become lazier.

2. Molecules of hot object will lose its activeness and cold object will gain some activeness.

3. Molecules of hot object will become more active.

4. Nothing will happen, they will stay the same.

Q. For a hot object and a cold object, what can we say about the movement of their molecules?

1. The molecules of cold object are not active at all.
2. The molecules of both the objects are equally active.
3. The molecules of hot object are more active.
4. The molecules of cold object are more active.

Q.

What is the relationship between melting point and freezing point of a body?

1. Both occur at the same temperature

2. Melting point is greater than freezing point

3. Freezing point is greater than melting point

4. It cannot be determined