2 - Thermochemistry

What temperature would

something need to be, in order

to not have thermoenergy.

• 0 Kelvin, absolute zero

• None of the other answers are correct

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9-12-PS1.A-5

9-12-PS1.B-6

9-12-PS1.B-7

Match the following variable to its name.

• Specific heat

• Q

• Mass

• C

• Change in Temperature

• Heat

• m

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9-12-PS1.B-6

9-12-PS1.B-7

9-12-PS1.A-5

​ (a)   is a measure of the matter and/or energy dispersal within a system, determined by the number of system microstates; often described as a measure of the disorder of the system.

• Entropy
• Kinetic energy
• Enthalpy
• Activation Energy

Tags

9-12-PS1.B-6

9-12-PS1.A-5

9-12-PS1.B-7

​ (a)   is the sum of a system’s internal energy and the mathematical product of its pressure and volume

• Enthalpy
• Entropy
• Activation energy
• Kinetic energy

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9-12-PS1.A-5

9-12-PS1.B-7

9-12-PS1.B-6

Energy that is transferred from one object or substance to another because of a difference in temperature between them. (a)  

• Temperature
• Energy
• Substance
• Heat

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9-12-PS1.A-5

9-12-PS1.B-7

9-12-PS1.B-6

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9-12-PS1.A-5

9-12-PS1.B-6

9-12-PS1.B-7

• 66.7g

• 28.8g

• 5400g

• .015g

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9-12-PS1.B-6

9-12-PS1.B-7

9-12-PS1.A-5

How much heat is lost when a 460 g piece of copper heats from 3.75 °C,

to 26 °C? (The specific heat of copper is 0.38452 J/g°C)

• 3,935J

• -85,886J

• 26,616J

• 12.3J

Tags

9-12-PS1.A-5

9-12-PS1.B-6

9-12-PS1.B-7

Match the following terms to its definition.

• Specific heat

• The heat content of a system at constant pressure.

• Specific heat equation

• Enthalpy

• Heat Capacity

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9-12-PS1.B-6

9-12-PS1.B-7

9-12-PS1.A-5

Match the following

• Activation energy

• Substance that increases the rate of a chemical reaction by lowering the activation energy.

• Extensive property

• Monomers and polymers of aldehydes and ketones that have multiple hydroxyl groups attached.

• Calorimeter

• The minimum energy that colliding particles must have in order to undergo a chemical reaction.

• Catalyst

• Depends on the amount of matter in a sample.

• Carbohydrate

• An insulated container that is used to measure the transfer of heat during a chemical reaction.

Tags

9-12-PS1.B-6

9-12-PS1.A-5

9-12-PS1.B-7