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Heat Transfer and Specific Heat Concepts

Total questions: 63

Worksheet time: 2hrs 41mins

Name
Class
Date
1.

Which will heat up faster?

a)

copper

b)

granite

c)

iron

d)

basalt

2.

Which will heat up slower?

a)

water

b)

lead

c)

granite

d)

iron

3.
If I heat up 2 pans of water one has 100 mL in it and one has 1000mL. Which one heats up the fastest?
a)
100 mL
b)
1000 mL
c)
They both heat up at the same speed
d)
They cool down.
4.

Which of the following best explains why the sand at the beach is hotter than the water?

a)

Sand has a higher specific heat than water.

b)

Sand has a lower specific heat than water.

c)

There is more water than sand at the beach.

d)

There is more sand than water at the beach.

5.
When a  piece of aluminum foil is taken out of the oven and cools from 100° to 50°, What is the change in temperature?
a)
50°
b)
0°
c)
100°
d)
150°
6.
How does heat flow?
a)
Always from cold to warm
b)
Always from warm to cold
c)
Both warm to cold & cold to warm
d)
It depends on the temperature
7.

The amount of energy required to raise the temperature 1ºC for every gram is called____?

a)

Thermal Energy

b)

Specific Heat

c)

Temperature

d)

Kinetic Energy

8.
What would be the effect on the particles if more heat is supplied to the system?
a)
They would slow down
b)
They would stop moving
c)
They would speed up
d)
There would be no effect
9.
Copper, Stainless Steel, Carbon Steel, and Zinc were all heated using the same thermal energy.  What material would be the coolest after being heated?
a)
Copper
b)
Carbon Steel
c)
Zinc
d)
Stainless Steel
10.
Specific heat of water is  4.18 J/g°C. Specific heat of wood is 1.760 J/g°C What material needs more heat energy to raise the temperature?
a)
Water
b)
Wood
c)
Both are same
11.
What unit do you use to measure Thermal Energy?
a)
J/Kg ºC
b)
Kg
c)
ºC
d)
J
12.

What letter is used to represent specific heat capacity?

a)

H

b)

P

c)

C

d)

T

13.
What is Specific Heat?
a)
The  amount of thermal energy required to increase the temperature of 1kg of a material by 1°C.
b)
The  amount of radiant energy required to increase the temperature of 1kgof a material by 1°C
c)
The  amount of energy required to increase the temperature of 1kgof a material by 1°C.
d)
The  amount of friction  required to increase the temperature of 1kgof a material by 1°C.
14.
Copper, Stainless Steel, Carbon Steel, and Zinc were all heated using the same thermal energy.  What material would be the coolest after being heated?
a)
Copper
b)
Carbon Steel
c)
Zinc
d)
Stainless Steel
15.

Which will heat up slower?

a)

water

b)

lead

c)

granite

d)

iron

16.

Which will heat up faster?

a)

copper

b)

granite

c)

iron

d)

basalt

17.

Which of the following best explains why the sand at the beach is hotter than the water?

a)

Sand has a higher specific heat than water.

b)

Sand has a lower specific heat than water.

c)

There is more water than sand at the beach.

d)

There is more sand than water at the beach.

18.

The amount of energy required to raise the temperature 1ºC for every gram is called____?

a)

Thermal Energy

b)

Specific Heat

c)

Temperature

d)

Kinetic Energy

19.
What would be the effect on the particles if more heat is supplied to the system?
a)
They would slow down
b)
They would stop moving
c)
They would speed up
d)
There would be no effect
20.
Copper, Stainless Steel, Carbon Steel, and Zinc were all heated using the same thermal energy.  What material would be the coolest after being heated?
a)
Copper
b)
Carbon Steel
c)
Zinc
d)
Stainless Steel
21.

Which material heats up quickest?

a)

Aluminium

b)

Concrete

c)

Diamond

d)

Glass

e)

Water

22.

Which material heats up slowest?

a)

Aluminium

b)

Concrete

c)

Diamond

d)

Glass

e)

Water

23.
How does heat flow?
a)
Always from cold to warm
b)
Always from warm to cold
c)
Both warm to cold & cold to warm
d)
It depends on the temperature
24.
What is the transfer of heat by movement of liquids or gases?
a)
Radiation
b)
Convection
c)
Conduction
d)
Heat
25.
What is the measurement of the average kinetic energy of a substance?
a)
Kinetic energy
b)
Temperature
c)
Thermal energy
d)
Potential energy
26.
What is a substance that does NOT conduct heat well?
a)
Conductor
b)
Insulator
c)
Convector
d)
Radiator
27.
What is a substance that DOES conduct heat well?
a)
Conductor
b)
Insulator
c)
Convector
d)
Radiator
28.
What is the energy of the movement of particles in a substance?
a)
Potential energy
b)
Kinetic energy
c)
Thermal energy
d)
Temperature
29.
Heat transfers from an area of ________temperature to an area of ______ temperature.
a)
high to low
b)
low to high
c)
high to high
30.
If an object has particles that are moving very quickly, the object 's temperature is probably _____.
a)
cold
b)
slow
c)
big
d)
hot
31.

The first postulate of the KMT is that all matter is made up of

a)

tiny particles

b)

molecules

c)

cells

d)

mass

32.

According the KMT, the particles are in

a)

different states

b)

organized patterns

c)

constant motion

d)

various containers

33.

According to the KMT, increasing the temperature of particles will

a)

give off energy

b)

increase motion

c)

decrease volume

d)

increase pressure

34.

According to the KMT, the particles of the different states of matter differ in what two key aspects?

a)

volume and mass

b)

density and extention of interactions

c)

temperature and freedom of motion

d)

freedom of motion and extent of interactions

35.

In a solid, what keeps each particle trapped in the same small volume and with the same surrounding particles.

a)

strong attractions between particles

b)

ionic bonds

c)

lack of particle motion

d)

low temperatures

36.

What does increasing the temperatureof a solid lead to?

a)

increased mass of particles

b)

decreased space between particles

c)

decreased velocity of particles

d)

increased velocity of particles

37.

What is happening when a solid is becoming a liquid?

a)

The particles decrease in motion, collapsing the organized structure.

b)

The increased movement of particles pushes them completely out of position, collapsing the organized structure.

c)

The particles increase in motion, causing the organized structure to flatten into a smaller shape.

d)

A particle party!

38.

How doe the particles in a liquid behave?

a)

Neatly organized without any movement.

b)

Move around trapped in a small volume and with the same surrounding particles.

c)

Move fast enough to break attractions and pushing other particles out of the way.

d)

Move freely in a straight line until they collide with another particle.

39.

How doe the particles in a gas behave?

a)

Neatly organized without any movement.

b)

Move around trapped in a small volume and with the same surrounding particles.

c)

Move fast enough to break attractions and pushing other particles out of the way.

d)

Move freely in a straight line until they collide with another particle.

40.

If the particles are moving fast enough to complete break the attraction pulling it back towards other particles, what process is occuring?

a)

sublimation

b)

melting

c)

freezing

d)

evaporation

41.

When particles in a gas collide, they change

a)

direction and velocity

b)

velocity and temperature

c)

direction and volume

d)

volume and temperature

42.

In which state of matter are the particles the farthest apart?

a)

gas

b)

liquid

c)

solid

43.

According to the KMT, increasing the temperature of particles will

a)

give off energy

b)

increase motion

c)

decrease volume

d)

decrease pressure

44.
What would be the effect on the particles if more heat is supplied to the system?
a)
They would slow down
b)
They would stop moving
c)
They would speed up
d)
There would be no effect
45.

If two objects have different temperatures when they come in contact, heat will flow from the warmer object to the cooler one UNTIL ____________

a)

one reaches a temperature of zero

b)

they both have an equal temperature

c)

one runs out of energy

46.
Calorimetry Question:
A piece of metal with a mass of 32.8 g is heated to 100.5°C and dropped into 138.2 g of water at 20.0°C.  The final temperature of the system is 30.2°C.  What is the specific heat capacity of the metal? (show your work)
a)
2.56 J/g°C
b)
0.391 J/g°C
c)
5.29 J/g°C
d)
3.50 J/g°C
47.

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

a)

37.8 °C

b)

-19.8 °C

c)

19.8 °C

d)

55.8 °C

48.

A piece of metal with a mass of 32.8 g is heated to 100.5°C and dropped into 138.2 g of water at 20.0°C. The final temperature of the system is 30.2°C. What is the specific heat capacity of the metal?

a)

2.56 J/g°C

b)

0.391 J/g°C

c)

5.29 J/g°C

d)

3.50 J/g°C

49.

Equal masses of copper, stainless steel, carbon steel, and zinc were all heated using 10,000 JOULES of thermal energy. What material would be have the LARGEST change in temperature?

a)

Copper

b)

Carbon Steel

c)

Zinc

d)

Stainless Steel

50.

If an 85.0 g sample of copper with a specific heat of 0.41 J/g°C is cooled from 45°C to 25°C, how much energy will it lose?

a)

-497 J

b)

-846 J

c)

-697 J

d)

-346 J

51.

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)

8778 J

b)

0.0005 J

c)

34673 J

d)

43451.1 J

52.
There are four cups of hot cocoa. The cup sizes are shown. The temperature of the cocoa in each cup is 25 degrees celsius. Which cup has the MOST thermal energy?
a)
Large cup (Trenta)
b)
Small cup (Tall)
c)
Venti
d)
All three are the same temperature so they have same thermal energy
53.

A piece of copper alloy with a mass of 85.0 g is heated from 30.0°C to 45°C. In the process, it absorbs 523 J of energy as heat. What is the specific heat of the copper?

a)

0.41 J/g°C

b)

0.73 J/g°C

c)

0.29 J/g°C

d)

0.57 J/g°C

54.
ΔH value in an endothermic reaction is a positive number.
a)
True
b)
False
55.

What term is given to a reaction which transfers heat energy to the surroundings?

a)

Endothermic

b)

Reversible

c)

Exothermic

d)

Exotermic

56.
If a chemical reaction is EXOTHERMIC, the temperature would....
a)
Stay the same
b)
Increase
c)
Decrease
57.

Which of the following process is exothermic?

a)

Candle was melting

b)

A puddle evaporating

c)

Dry ice (solid carbon dioxide) subliming to form gaseous carbon dioxide

d)

Water freezing to form ice

58.

Temperature is...

a)

A measure of the potential energy stored in a substance

b)

The same as heat

c)

A measure of the random motions of the components of a substance

59.

6 CO2+ 6 H2O + Energy → C6H12O6 + 6 O26\ CO_2+\ 6\ H_2O\ +\ Energy\ \rightarrow\ C_6H_{12}O_6\ +\ 6\ O_2

a)

endothermic reaction

b)

exothermic reaction

60.
Evaporation is what kind of change?
a)
Endothermic
b)
Exothermic
61.

Is this diagram endothermic or exothermic

a)

Endothermic

b)

Exotermic

c)

Exothermic

d)

Endote

62.

Is the combustion of propane endothermic or exothermic?

a)

Endothermic

b)

Exothermic

63.
H2 + Cl2 --> 2 HCl + 1845 kJ
Is this reaction endothermic or exothermic?
a)
Endothermic 
b)
Exothermic

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