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Thermochemistry

Authored by George Miles

Chemistry

10th - 12th Grade

Used 9+ times

Thermochemistry
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22 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a chemical reaction absorbs heat energy, the temperature of the surroundings will:

go up

go down

stay the same

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Temperature scale with zero as the melting point of water (ice):

Fahrenheit

Celsius

Kelvin

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Adjective for a reaction or process that had a positive enthalpy change (delta H value).

endothermic

exothermic

hypothermic

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This type of reaction is exothermic, and the heat produced from it helps heat homes and power our vehicles.

synthesis

combustion

decomposition

single replacement

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the sign of H or enthalpy in a heat pack that releases more heat than it takes in, therefore heating cold hands.

positive

negative

zero

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

By definition, the value of this energy term is always zero for the most stable form of an element at standard conditions of 298 Kelvin T and 1.0 atom P.

heat of reaction

heat of formation

heat of fusion

heat of vaporization

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Name of the Greek letter that is used as a symbol for a change in any quantity, such as temperature.

alpha

beta

omega

delta

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