Chapter 4

Question 1

100 cal of heat is added to 50 g of water is at 50 degrees c. What is the final temperature of the water?

48
50
52
54

Answer 1

52

Question 2

2,000 cal = __________ Joules.

7,374
8,374
9,374
10,374

Answer 2

8,374

Question 3

2,000 cal were added to 100g of water at 30 degrees C. What was the final temperature of the water?

30 degrees C
40 degrees C
50 degrees C
60 degrees C

Answer 3

50 degrees C

Question 4

233 K is equal to ______________.

-40 degrees C
-40 degrees F
A and B
None of the above

Answer 4

A and B

Question 5

393 K is equal to ________________.

148 degrees F
248 degrees F
348 degrees F
448 degrees F

Answer 5

248 degrees F

Question 6

A 3-kg pine board is 20 cm wide, 2 cm thick, and 2 m long. The density of the board is

240 kg/m3
267 kg/m3
375 kg/m3
469 kg/m3

Answer 6

375 kg/m3

Question 7

A cup of water had a change of temperature of 10 degrees C when 100 Calories of heat was added. What was the mass of the water?

0.1 g
0.1 Kg
10 g
10 Kg

Answer 7

10 Kg

Question 8

A refrigerator

produces cold
changes heat to cold
causes heat to disappear
removes heat from a region and carries it elsewhere

Answer 8

removes heat from a region and carries it elsewhere

Question 9

A refrigerator gives off

less heat than it absorbs from its contents
the same amount of heat it absorbs from its contents
more heat than it absorbs from its contents
any of the above, depending on the circumstances

Answer 9

more heat than it absorbs from its contents

Question 10

An absolute temperature of 100 K is the same as a Celsius temperature of

-173°C
32°C
212°C
373°C

Answer 10

-173°C

Question 11

Atmospheric pressure at sea level corresponds to approximately:

800 Torr
80 mm Hg
101.3 KPa
101.3 Pa

Answer 11

101.3 KPa

Question 12

Heat can be transferred through a solid by which one or more of the following?
conduction
convection
radiation

conduction
convection
radiation
All of the above

Answer 12

All of the above

Question 14

Heat conduction is most efficient in

metals
nonmetallic solids
water
gases

Answer 14

metals

Question 15

How much heat is required to raise the temperature of 100 g of lead 20 degrees C? The specific heat of lead is 0.0305 cal/g K.

51 cal
61 cal
71 cal
81 cal

Answer 15

61 cal

Question 16

Ice has a density of 0.92 g/cm3. What is the mass in Kg of 20 m3 of ice?

18,400
1,840
1.84
Unknown, not enough information.

Answer 16

18,400

Question 17

Lead melts at 330 degrees C . On the absolute scale this temperature corresponds to:

57 K
362 K
571 K
603 K

Answer 17

603 K

Question 18

Milk has a density of 1.03 g/cm3. What is the volume of 1 Kg of Milk in Liters?

971
97.1
0.971
Unknown, not enough information.

Answer 18

0.971

Question 19

Oxygen boils at -183°C. This temperature is
(In F)

-215°F
-297°F
-329°F
-361°F

Answer 19

-297°F

Question 20

The amount of heat needed to raise the temperature of 1 kg of water by 1°C

is 1 kJ
is 4.19 kJ
is 9.8 kJ
varies between 1 kJ and 100 kJ depending on the initial temperature of the water

Answer 20

is 4.19 kJ

Question 21

The density of brass is 8.4 g/cm3. The volume occupied by 200 g of brass is

0.042 cm3
0.41 cm3
24 cm3
1680 cm3

Answer 21

24 cm3

Question 22

The pressure difference from the top to the bottom of a 20 meter column of water is:
196 KPa
1,470 mm Hg
1.9348 ATM

Answer 22

All of the above.

Question 23

What is the heat required in calories to raise the temperature of 100 grams of brass 50 degrees C?

360
460
560
660

Answer 23

460

Question 24

When heat is added to a body of matter, the resulting temperature increase does not depend upon

its mass
its shape
what kind of material it consists of
whether it is in the solid, liquid, or gaseous state

Answer 24

its shape

Question 25

Which of the following formulas relating temperatures on the Celsius and Fahrenheit scales is correct? Tc = (5/9)(TF - 32°) Tc = (5/9)(TF + 32°) Tc = (9/5)(TF - 32°) Tc = (9/5)(TF + 32°)

Answer 25

Tc = (5/9)(TF - 32°)