Energy Calculations Final Review

Energy Calculations Final Review

10th Grade

27 Qs

quiz-placeholder

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Energy Calculations Final Review

Energy Calculations Final Review

Assessment

Quiz

Chemistry

10th Grade

Hard

Created by

LAURA PERRY

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27 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For the formula:
 Q= m c ∆T
The  units for specific heat are:

g /J C
°C/g J
kJ/g
J/g°C

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A sample of iron receives 50.J of heat energy that raises the temperature of the iron by 25.0°C. If iron has a specific heat of 0.10 J/g°C, what is the mass of the iron sample?  (show your work)

25g
30g
20g
50g

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

The specific heat of water is 4.18 J/g°C.

If 980. J of energy is added to 6.20 g of water at 18.0 °C, what is the final temperature of the water?

37.8 °C

-19.8 °C

19.8 °C

55.8 °C

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What does "ΔT" mean?

A change in health

A change in heat

A change in height

A change in temperature

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a chemical reaction is EXOTHERMIC, the temperature would....

Stay the same
Increase
Decrease

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

This graph is an energy diagram for a chemical reaction. Which is true of this type of reaction?

More energy is required to break reactant bonds than is released when product bonds form

Less energy is required to break reactant bonds than is released when product bonds form

The bonds of the reactants do not require energy to break because the reaction releases energy

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Breaking bonds

Endothermic
Exothermic

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