unit 8 -- zeroth and first law

Drag and Drop

Thermodynamics is the study of ​

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in which ​

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energy is converted into other forms of ​

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.

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systems

heat

energy

particles

elements

Multiple Choice

What essential fact is the first steam engine based on?

• steam is a renewable energy source

• water has higher specific heat capacity

• steam takes up much more space than water

Multiple Choice

Where did the inventor of the first steam engine originally work?

• an engine factory

• a coal mine

• a salt mine

• a railroad

Multiple Choice

Heating water to turn it into steam causes which process?

• compression

• expansion

Multiple Choice

In a heat engine, the gas inside the cylinder is the ---.

• System

• Surroundings

Drag and Drop

​

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is any process that ​

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the volume of a given mass of gas. The pressure and ​

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may also increase.

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Expansion

increases

temperature

Compression

Multiple Choice

According to the zeroth law, why doesn't heat flow between a rock at 15^oC and air at 15^oC ?

• the rock is in thermal equilibrium with the air

• heat will not flow between objects at the same temperature

• both of the other answers are correct

Multiple Choice

The diagram shows 3 metal samples. Block A and B are not in direct contact with each other. Choose the statement that describes them correctly.

• Block A transfers heat directly to Block B, so Block C is in thermal equilibrium with both.

• Block C is in thermal equilibrium with both A and B, so A is in equilibrium with B

Drag and Drop

The first law of thermodynamics is based on ​

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. No more energy can be released from the ​

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than what is ​

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to the system.

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conservation

system

added

Multiple Choice

Doing work on the surroundings ____ the system's energy.

• increases

• decreases

Multiple Choice

Adding heat ____ the system's energy.

• increases

• decreases

Multiple Choice

In the example, the air in the milk jug is the ---

• System

• Surroundings

Multiple Choice

The air inside the jug gained heat and did work to pop off the lid of the jug. Which sign is correct for heat of the system?

• +Q

• -Q