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Thermochem Review 1

Authored by Linda Cannon

Chemistry

9th - 12th Grade

NGSS covered

Used 16+ times

Thermochem Review 1
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12 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Temperature is a measure of the...

total energy in a substance
total kinetic energy in a substance
average potential energy in a substance
average kinetic energy of molecules in a substance

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A chemical reaction that releases heat to the surroundings is said to be __________ and has a __________ ΔH at constant pressure.

endothermic; positive

endothermic; negative

exothermic; negative

exothermic; positive

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Over time, the temperature of a glass of cold water will...

match the temperature of the surrounding environment.

become colder still, as heat is transferred to the surrounding environment.

become warmer than the surrounding environment.

not change temperature.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What would be the effect on the particles if more heat is supplied to the system?

They would slow down
They would stop moving
They would speed up
There would be no effect

Tags

NGSS.HS-PS1-5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which state of H2O  has the greatest entropy?

Ice
Water
Vapor

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement is true about the ENTROPY?

Entropy refers to DISORDER, the unusable energy that escapes a system.
Entropy refers to the balance of temperature among two or more systems.
Entropy refers to the average kinetic energy of the molecules.
Entropy refers to the inability to destroy or create energy. 

Tags

NGSS.HS-PS3-4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

In an exothermic reaction, heat is ...

taken in or absorbed

given out or released

Tags

NGSS.HS-PS1-4

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