Chemistry Concepts and Applications

Section 2: Measuring Energy Changes

Self Check Quizzes

1
How does a calorimeter demonstrate an endothermic reaction?

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A)The temperature of the water around the reaction goes down.
B)The temperature of the water around the reaction goes up.
C)The mass of the water around the reaction chamber increases
D)The mass of the water around the reaction chamber decreases.
2
A kilocalorie __________.

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A)is equal to 4.184 J
B)is equal to 1000 J
C)is equal to 1 J
D)is equal to 4184 J
3
Which increase is prohibited by the law of entropy?

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A)Increasing the maximum theoretical efficiency.
B)Increasing the efficiency of the boiler.
C)Increasing the efficiency of the turbine.
D)Increasing the efficiency of the generator.
4
Energy lost by a power plant is not destroyed, but is __________.

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A)stored as fuel
B)wasted as heat
C)reusable
D)eventually reclaimed
5
This device is used to measure the heat given off by chemical reactions.
A)calorimeter
B)colorimeter
C)Dumas bulb
D)Erlenmeyer flask
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