Zeroth Law of Thermodynamics

Q. If A and B are in thermal equilibrium and A and C is in thermal equilibrium, then B and C are also is in thermal equilibrium.

1. False
2. True

Q.

A system X is neither in thermal equilibrium with Y nor with Z. The systems Y and Z:

1. Must be in thermal equilibrium

2. Cannot be in thermal equilibrium

3. May be in thermal equilibrium

4. None of these

Q. If you constantly strike an iron bar with a hammer, the temperature of the bar increases.

1. True
2. False

Q.

A system X is neither in thermal equilibrium with Y, nor with Z. The systems Y and Z -

1. Must be in thermal equilibrium

2. Cannot be in thermal equilibrium

3. May be in thermal equilibrium

4. None of these

Q. Two thermally insulated chambers are as shown in figure

Mark the correct option

1. In figure 1, A, B, C are in thermal equilibrium
2. In figure 2, A, B, C are in thermal equilibrium
3. A, B, C is not in thermal equilibrium in any figure
4. In figure 1, A, B, C are in same temperature

Q. Can explain what is thermodynamics

Q.

A system $X$ is neither in thermal equilibrium with $Y$ nor with $Z$. Then what can we say about the systems $Y$ and $Z$?

1. $\text{They must be in thermal equilibrium.}$

2. $\text{They cannot be in thermal equilibrium.}$

3. $\text{May be they are in thermal equilibrium.}$

4. $\text{none of these}$