Zeroth Law of Thermodynamics

Which law states that if two systems or objects are in thermal equilibrium with a third system or object, then they are in thermal equilibrium with each other?

• First law

• Second law

• Third law

• Zeroth law

It states that if two thermodynamic systems are each in thermal equilibrium with a third, then they are in thermal equilibrium with each other.

• 1st law of thermodynamics

• 2nd law of thermodynamics

• 3rd law of thermodynamics

• Zeroth Law

My coffee and the creamer have the same temp.  My cofee and the cup have the same temp. So...Creamer and cup have same temp.

• 1st law of thermodynamics

• 2nd law of thermodynamics

• 3rd law of thermodynamics

• Zeroth Law

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NGSS.HS-PS3-4

What does the Zeroth Law of Thermodynamics state?

• Energy cannot be created or destroyed.

• Entropy of an isolated system always increases.

• If two systems are in thermal equilibrium with a third system, they are in thermal equilibrium with each other.

• It is impossible to reach absolute zero temperature.

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NGSS.HS-PS3-4

Which law helps us understand the concept of temperature and allows us to use thermometers?

• Zeroth Law

• First Law

• Second Law

• Third Law

Which law of thermodynamics is fundamental in defining temperature?

• First Law

• Second Law

• Third Law

• Zeroth Law

The Zeroth Law of Thermodynamics is essential for the functioning of which device?

• Refrigerator

• Thermometer

• Heat Engine

• Air Conditioner

If object A is in thermal equilibrium with object B, and object B is in thermal equilibrium with object C, what can be said about objects A and C?

• They are in thermal equilibrium with each other.

• They are not in thermal equilibrium with each other.

• They have different temperatures.

• They have the same mass.

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NGSS.HS-PS3-4

Which of the following best describes the Zeroth Law of Thermodynamics?

• It defines the concept of energy conservation.

• It introduces the concept of entropy.

• It establishes the concept of temperature.

• It explains the behavior of gases.

In a laboratory, a scientist finds that two metal rods are in thermal equilibrium with a water bath. What can be concluded about the two rods?

• They are in thermal equilibrium with each other.

• They have different temperatures.

• They are in thermal equilibrium with the air.

• They have the same mass.

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