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Question

Zeroth law of thermodynamics states that 

ऊष्मागतिकी का शून्य नियम यह कहता है

A.

Two thermodynamics systems are always in thermal equilibrium with each other. 

B.

If two systems are in thermal equilibrium, then the third system will also be in thermal equilibrium.

C.

Two system not in thermal equilibrium with a third system will also not in thermal equilibrium with each other.

D.

When two system are in thermal equilibrium with a third system, they are in thermal equilibrium with each other.

Answer ( Option D)

When two system are in thermal equilibrium with a third system, they are in thermal equilibrium with each other.

Solution

                                

The zeroth law of thermodynamics states that if two thermodynamic systems are in thermal equilibrium with the third one, then they are in thermal equilibrium with each other.

Hence, the correct option is (D).

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