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Aconcagua

Total questions: 10

Worksheet time: 20mins

Name
Class
Date
1.

The specific heat of a metal is 1.25 J/g C. How much heat is absorbed with 40.0 g of the metal changes from 25.0 C to 50.0 C?

a)

50

b)

75.0

c)

1250

d)

31.25

2.

Calculate the heat absorbed by 105.0 grams of water when it is heated to cook spaghetti. The initial temperature of the water is 20.0 C, and the final temperature of the water is 99.0 C. The specific heat of water is 4.18 J/g C.

a)

34673

b)

34673.1

c)

4389

d)

4389.1

3.

Calculate the specific heat of a piece of wood if 1500.0 g of the wood absorbs 67,500 joules of heat, and its temperature changes from 32.0 C to 57.0 C.

a)

20,000

b)

30,000

c)

40,000

d)

37500

4.

A 0.3 g piece of copper is heated and fashioned into a bracelet. The amount of energy transferred by heat to the copper is 66,300 J. if the specific heat of copper is 390 J/g C, what is the change of the copper’s temperature?

a)

66,300.0

b)

(.3)(390)(Temp)

c)

117

d)

566.7

5.

25.0 g of mercury is heated from 25.0 C to 155 C, and absorbs 455 joules of heat in the process. Calculate the specific heat capacity of mercury.

a)

.12

b)

.13

c)

.14

d)

.15

6.

A new metal has 666 g a initial temperature of 28 C to 33 C. And 1.29 J/g C. Whats the heat of the new metal

a)

6.45

b)

3330

c)

859.14

d)

4295.7

7.

What mass of the new metal can be heated from 23 C to 33 C by the addition of 150 J? The specific heat of water is 61.5 J/g °C.

a)

.26

b)

6.45

c)

.25

d)

605

8.

How much Jules are in a metal with the mass of 52 g plus the addition of 1.5 j/g C. and the temp starting at 20 that goes to 90

a)

5458

b)

5459

c)

5460

d)

5461

9.

A small piece of aluminum is found, The Jules of the aluminum is 1940. With the addition of 15.52 j/g C. And the temperature of 50 C that goes to 75 C. What is the mass of the aluminum.

a)

1

b)

0

c)

1940

d)

-388

10.

A orange substance smelling like oranges was found. What is the temperature of this substance if the mass is 50 g. Plus 930 Jules. in addition 1.59 j/g C.

a)

11.61

b)

11.7 C

c)

78.5

d)

35