Laws of Thermodynamics

As time progresses, Energy will naturally become more spread out.  It can only come together if you make it.

• Zeroth Law of Thermodynamics

• First Law of Thermodynamics

• Second Law of Thermodynamics

• Third Law of Thermodynamics

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How many laws of thermodynamics are there?

• a lot

• 3

• 4

• 1

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The 1st law of Thermodynamics

• Energy can not be created or destroyed. It just changes forms.

• Energy can only be created by the sun

• Some energy is lost to the environment.

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Which best describes the first law of thermodynamics as compared to the second law of thermodynamics?

• The first law describes how thermal energy is conserved but not the direction it moves.

• The first law describes the direction thermal energy moves but not how it is conserved.

• The first law describes how thermal energy can be created but not how it can be destroyed.

• The first law describes how thermal energy can be destroyed but not how it can be created.

Which best describes a spontaneous process as it relates to the second law of thermodynamics?

• It destroys heat.

• It requires work.

• It creates energy.

• It occurs naturally.

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Which best describes how the diagram illustrates both laws of thermodynamics?

• First law: High-temperature steam flows to an area of lower temperature in the turbines.

  Second law: Thermal energy is used to do work on the turbines.

• First law: Thermal energy is used to do work on the turbines.

  Second law: High-temperature steam flows to an area of lower temperatures in the turbines.

• First law: Some thermal energy is lost to the surrounding environment as it travels through the system.

  Second law: Kinetic energy is used to turn an electrical generator.

• First law: Kinetic energy is used to turn an electrical generator.

  Second law: Some thermal energy is lost to the surrounding environment as it travels through the system.

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Rosa pours a cup of boiling water into a pot of room-temperature water. According to the second law of thermodynamics, what will occur?

• Thermal energy from the room-temperature water will continuously flow to the boiling water.

• Thermal energy from the room-temperature water will flow to the boiling water until all of the water in the pot is at a single temperature.

• Thermal energy from the boiling water will continuously flow to the room-temperature water.

• Thermal energy from the boiling water will flow to the room-temperature water until all of the water in the pot is at a single temperature.

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Which law of thermodynamics states that energy cannot be created or destroyed, only transformed from one form to another?

• Zeroth Law of Thermodynamics

• First Law of Thermodynamics

• Second Law of Thermodynamics

• Third Law of Thermodynamics

What does the second law of thermodynamics imply about the direction of heat transfer?

• Heat flows from cold to hot spontaneously

• Heat flows from hot to cold spontaneously

• Heat can flow from cold to hot with no work done

• Heat can flow from hot to cold with no work done

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According to the third law of thermodynamics, what happens to the entropy of a perfect crystal as the temperature approaches absolute zero?

• Entropy becomes infinite

• Entropy becomes zero

• Entropy remains constant

• Entropy becomes negative