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Heat Equations

Authored by Nick Senise

Chemistry

9th - 12th Grade

Used 9+ times

Heat Equations
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15 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

If the specific heat of water is 4.18 J/g∙°C, how much heat is required to increase the temperature of 1,200 g of water from 23 °C to 39 °C?

-80,256 J

80.256 J

80,256 J

-80.256 J

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?

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

30 sec • 1 pt

What is the formula to calculate heat energy required to raise the temperature of any substance?

Q = m C ∆T

Q = m Hv

Q = ½ m v

m = Q Hf

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How much energy is required to raise 85.36 g of water from 18.5oC to 60.3oC?

21500 J

6610 J

14900 J

85400 J

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

How many Joules of energy are required to make 50.0 grams of ice at 0 οC completely melt?

334 J

0 J

33,400 J

16,700 J

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The temperature of a 6.0 g sample of glass changed from 20.0°C to 45.0°C when it absorbed 550 J of heat. What is the specific heat of this glass?

0.27 J/g °C

3.7 J/g °C

130 J/g °C

12 J/g °C

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