CHEM 105 - General Chemistry 1 (Fall 2015)

Question 1 of 24

1

Fill the blank spaces to complete the text.

Energy is the to do .

Explanation

Question 2 of 24

1

Fill the blank spaces to complete the text.

Work is the result of a acting through a .

Explanation

Question 3 of 24

1

What are the two primary methods through which objects or sets of objects exchange energy?

Select one of the following:

heat and mass
heat and work
motion and heat
attraction and work

Explanation

Question 4 of 24

1

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The energy associated with the motion of an object is its energy.

Explanation

Question 5 of 24

1

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The energy associated with the position or composition of an object is its energy.

Explanation

Question 6 of 24

1

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energy, a form of potential energy, is associated with the relative positions of electrons and nuclei in atoms and molecules.

Explanation

Question 7 of 24

1

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The energy associated with the temperature of an object is its energy.

Explanation

Question 8 of 24

1

The law of conservation of energy, or the first law of thermodynamics, states that energy can be neither created nor destroyed. This means that the total energy of the universe is constant.

Select one of the following:

True
False

Explanation

Question 9 of 24

1

The SI unit of energy is the joule (J). Which of the following is true about this unit?

Select one of the following:

1 J = 1 g * m^2 / s^2
1 J = 1 kg * m^2 / s^2
1 J = 1 kg * m / s^2
1 J = 1 kg * m^2 / h^2
1 J = 1 kg * m^2 / s

Explanation

Question 10 of 24

1

Fill the blank spaces to complete the text.

Besides joules, a calorie is another commonly used energy unit:
1 cal = J
1 Cal = 1 = cal

Explanation

Question 11 of 24

1

Fill the blank spaces to complete the text.

Besides joules, a kilowatt-hour is another unit of energy commonly used for electricity bills:
1 kWh = * J

Explanation

Question 12 of 24

1

The internal energy (E) of a system is the sum of the kinetic and potential energies of all of the particles that compose the system.

Select one of the following:

True
False

Explanation

Question 13 of 24

1

Internal energy is a state function, which means that its value depends only on the state of the system, not on how the system arrived at that state.

Select one of the following:

True
False

Explanation

Question 14 of 24

1

Which of the following is true about a system's energy?

Select one of the following:

ΔE(sys) = -ΔE(surr)
2ΔE(sys) = -ΔE(surr)
ΔE(sys) = ΔE(surr)
ΔE(sys) = -3ΔE(surr)
-ΔE(sys) = -ΔE(surr)

Explanation

Question 15 of 24

1

Fill the blank spaces to complete the text.

If the reactants have a higher internal energy than the products, ΔE(sys) is and energy flows the system into the surroundings. If the reactants have a lower internal energy than the products, ΔE(sys) is and
energy flows the system from the surroundings.

Explanation

Question 16 of 24

1

Which of the following represents heat?

Select one of the following:

H
q
w
ΔE

Explanation

Question 17 of 24

1

Which of the following represents change in internal energy for a given system?

Select one of the following:

ΔQ
ΔI
ΔE
ΔH

Explanation

Question 18 of 24

1

Fill the blank spaces to complete the text.

ΔE = +

Explanation

Question 19 of 24

1

What is the difference between heat and thermal energy?

Select one of the following:

Temperature is a measure of the thermal energy within a sample of matter, whereas heat is the transfer of thermal energy.
Heat is a measure of the thermal energy within a sample of matter, whereas temperature is the transfer of thermal energy.
Temperature is a measure of the total energy within a sample of matter, whereas heat is a measure of temperature change.
Heat is a measure of the total thermal energy within a sample of matter, whereas temperature is a measure of heat change.

Explanation

Question 20 of 24

1

Fill the blank spaces to complete the text.

The constant of proportionality between q and ΔT is the system’s heat capacity (C), a measure of the system’s ability to absorb thermal energy without undergoing a large change in temperature. C is defined as the quantity of heat required to change a system's temperature by 1 °C:

q = × Δ

Explanation

Question 21 of 24

1

What is the difference between heat capacity and specific heat capacity?

Select one of the following:

Heat capacity is the ratio of the amount of energy absorbed to the associated temperature rise, whereas specific heat capacity is the heat capacity of a substance per unit mass.
Specific heat capacity is the ratio of the amount of energy absorbed to the associated temperature rise, whereas heat capacity is the specific heat capacity of a substance per unit mass.
Heat capacity is the ratio of the amount of energy absorbed, whereas specific heat capacity is the difference in heat capacity.

Explanation

Question 22 of 24

1

Which of the following is true about heat?

Select one of the following:

q = m / C(s) × ΔT
q = 2m × C × ΔT
q = m × C(s)
q = m × C(s) × ΔT
q = m × C / ΔT

	Created by Vinh Le over 8 years ago

Quiz for CHEM 105 - General Chemistry 1 (Fall 2015)

CHEM 105 - General Chemistry 1 (Fall 2015)

Question 1 of 24

Fill the blank spaces to complete the text.

Energy is the to do .

Explanation

Question 2 of 24

Fill the blank spaces to complete the text.

Work is the result of a acting through a .

Explanation

Question 3 of 24

What are the two primary methods through which objects or sets of objects exchange energy?

Select one of the following:

Explanation

Question 4 of 24

Fill the blank space to complete the text.

The energy associated with the motion of an object is its energy.

Explanation

Question 5 of 24

Fill the blank space to complete the text.

The energy associated with the position or composition of an object is its energy.

Explanation

Question 6 of 24

Fill the blank space to complete the text.

energy, a form of potential energy, is associated with the relative positions of electrons and nuclei in atoms and molecules.

Explanation

Question 7 of 24

Fill the blank space to complete the text.

The energy associated with the temperature of an object is its energy.

Explanation

Question 8 of 24

The law of conservation of energy, or the first law of thermodynamics, states that energy can be neither created nor destroyed. This means that the total energy of the universe is constant.

Select one of the following:

Explanation

Question 9 of 24

The SI unit of energy is the joule (J). Which of the following is true about this unit?

Select one of the following:

Explanation

Question 10 of 24

Fill the blank spaces to complete the text.

Besides joules, a calorie is another commonly used energy unit: 1 cal = J 1 Cal = 1 = cal

Explanation

Question 11 of 24

Fill the blank spaces to complete the text.

Besides joules, a kilowatt-hour is another unit of energy commonly used for electricity bills: 1 kWh = * J

Explanation

Question 12 of 24

The internal energy (E) of a system is the sum of the kinetic and potential energies of all of the particles that compose the system.

Select one of the following:

Explanation

Question 13 of 24

Internal energy is a state function, which means that its value depends only on the state of the system, not on how the system arrived at that state.

Select one of the following:

Explanation

Question 14 of 24

Which of the following is true about a system's energy?

Select one of the following:

Explanation

Question 15 of 24

Fill the blank spaces to complete the text.

If the reactants have a higher internal energy than the products, ΔE(sys) is and energy flows the system into the surroundings. If the reactants have a lower internal energy than the products, ΔE(sys) is and energy flows the system from the surroundings.

Explanation

Question 16 of 24

Which of the following represents heat?

Select one of the following:

Explanation

Question 17 of 24

Which of the following represents change in internal energy for a given system?

Select one of the following:

Explanation

Question 18 of 24

Fill the blank spaces to complete the text.

ΔE = +

Explanation

Question 19 of 24

What is the difference between heat and thermal energy?

Select one of the following:

Explanation

Question 20 of 24

Fill the blank spaces to complete the text.

Besides joules, a calorie is another commonly used energy unit:
1 cal = J
1 Cal = 1 = cal

Besides joules, a kilowatt-hour is another unit of energy commonly used for electricity bills:
1 kWh = * J

If the reactants have a higher internal energy than the products, ΔE(sys) is and energy flows the system into the surroundings. If the reactants have a lower internal energy than the products, ΔE(sys) is and
energy flows the system from the surroundings.

The constant of proportionality between q and ΔT is the system’s heat capacity (C), a measure of the system’s ability to absorb thermal energy without undergoing a large change in temperature. C is defined as the quantity of heat required to change a system's temperature by 1 °C:

q = × Δ