Question 1

A balloon with a volume of 5.65 L at room temperature (25°C) is placed in insulated container that is cooled with dry ice where the temperature is -19°C. What is the volume of the balloon in the container when its temperature reaches -19°C? Assume no change in pressure.

Accepted Answer

A)  6.63 L 
B)  4.29 L 
C)  7.43 L 
D)  4.82 L

Question 2

Which of the following is the strongest intermolecular attractive force?

Accepted Answer

A)  ion-ion attractions 
B)  dipole-dipole attractions 
C)  dispersion forces 
D)  hydrogen bonds

Question 3

The following is a mathematical expression of Guy-Lussac's law.

Accepted Answer

A) True 
 B)False

Question 4

In the following sentences, fill in the blanks with the appropriate terms from the list below.  
high
low
electrolyte
nonelectrolyte
ion-ion attraction
dipole-dipole attraction
hydrogen bond
dispersion force
-The nitrogen atom in the lower right ammonia molecule is a hydrogen bond _____________________.

Accepted Answer

The answer of In the following sentences, fill in the...

Question 5

The specific heat of ice is 0.480 cal/g°C. How much heat will it take to raise the temperature of 22.50 g of ice from -30.0 °C to -20.0°C?

Accepted Answer

A)  108 cal 
B)  216 cal 
C)  324 cal 
D)  469 cal

Question 6

The use of the energy in food by the body to cause a muscle to contract is an example of

Accepted Answer

A)  conversion of heat energy into potential energy. 
B)  conversion of kinetic energy into potential energy. 
C)  conversion of potential energy into kinetic energy. 
D)  conversion of kinetic energy into heal energy.

Question 7

Air pressure can be expressed in which of the following units?

Accepted Answer

A)  atmosphere 
B)  pascal 
C)  torr 
D)  any of these

Question 8

In the following sentences, fill in the blanks with the appropriate terms from the list below.  
high
low
electrolyte
nonelectrolyte
ion-ion attraction
dipole-dipole attraction
hydrogen bond
dispersion force
-This substance is water-soluble. A solution of this compound in water would be classified as a(n)_______________________.

Accepted Answer

The answer of In the following sentences, fill in the...

Question 9

The two compounds below have the same molecular formula. One would expect A to have a higher boiling point than B.

Accepted Answer

A) True 
 B)False

Question 10

Consider two identical soccer balls. Ball A is kicked and attains a velocity 25 m/sec. Ball B is kicked and attains a velocity of 15 m/sec. At these velocities, Ball A has the greater kinetic energy.

Accepted Answer

A) True 
 B)False

Question 11

A convenient reference set of conditions for gases is STP (Standard Temperature and Pressure). There conditions are defined as exactly 0°C and 1.00 atm. If a sample of a gas have a volume of 2.57 L at a temperature of 27°C and 1.25 atm. What is the volume of this gas at STP?

Accepted Answer

The answer of A convenient reference set of conditions for...

Question 12

Filling the blank with the appropriate term from the list below.
 Charles's
Boyle's
Guy-Lussac's
Combined Gas
-The following equation is an expression of ______________ law.

Accepted Answer

The answer of Filling the blank with the appropriate term...

Question 13

The pressure of a gas is dependent on temperature.

Accepted Answer

A) True 
 B)False

Question 14

Either the Kelvin or the Celsius temperature scale can be used in gas law calculations.

Accepted Answer

A) True 
 B)False

Question 15

Diethyl ether historically was used as an anesthetic. Currently, it is a very important solvent. The freezing point and boiling point of diethyl ether are -116 °C and 37 °C, respectively. Diethyl ether is a solid at 0 °C.

Accepted Answer

A) True 
 B)False

Question 16

Helium (He) is used to fill balloons and is stored in a metal cylinder with pressure gauges on the top.  For each of the following changes, fill the blank with one of the following terms to describe what happens to the pressure reading on the gauge. 
increases
decreases
remains constant
-Sun shines on the cylinder and warms it, the pressure reading________________________.

Accepted Answer

The answer of Helium (He) is used to fill balloons...

Question 17

Specific heat is the conversion factor that allows for the calculation of energy based on temperature changes.

Accepted Answer

A) True 
 B)False

Question 18

Helium (He) is used to fill balloons and is stored in a metal cylinder with pressure gauges on the top.  For each of the following changes, fill the blank with one of the following terms to describe what happens to the pressure reading on the gauge. 
increases
decreases
remains constant
-The cylinder was not secured and fell over, producing a sizable dent in the side. The pressure reading ____________________.

Accepted Answer

The answer of Helium (He) is used to fill balloons...

Question 19

Filling the blank with the appropriate term from the list below.
 Charles's
Boyle's
Guy-Lussac's
Combined Gas
-The variation in pressure with temperature is defined by ____________________law.

Accepted Answer

The answer of Filling the blank with the appropriate term...

Question 20

Filling the blank with the appropriate term from the list below.
 Charles's
Boyle's
Guy-Lussac's
Combined Gas
-The effect of increasing the temperature on the volume of a gas can be calculated by using _________law.

Accepted Answer

The answer of Filling the blank with the appropriate term...

Exam 4: Energy and Physical Properties

A balloon with a volume of 5.65 L at room temperature (25°C) is placed in insulated container that is cooled with dry ice where the temperature is -19°C. What is the volume of the balloon in the container when its temperature reaches -19°C? Assume no change in pressure.

Which of the following is the strongest intermolecular attractive force?

The following is a mathematical expression of Guy-Lussac's law.

The specific heat of ice is 0.480 cal/g°C. How much heat will it take to raise the temperature of 22.50 g of ice from -30.0 °C to -20.0°C?

The use of the energy in food by the body to cause a muscle to contract is an example of

Air pressure can be expressed in which of the following units?

The two compounds below have the same molecular formula. One would expect A to have a higher boiling point than B.

Consider two identical soccer balls. Ball A is kicked and attains a velocity 25 m/sec. Ball B is kicked and attains a velocity of 15 m/sec. At these velocities, Ball A has the greater kinetic energy.

A convenient reference set of conditions for gases is STP (Standard Temperature and Pressure). There conditions are defined as exactly 0°C and 1.00 atm. If a sample of a gas have a volume of 2.57 L at a temperature of 27°C and 1.25 atm. What is the volume of this gas at STP?

Filling the blank with the appropriate term from the list below. Charles's Boyle's Guy-Lussac's Combined Gas -The following equation is an expression of ______________ law.

The pressure of a gas is dependent on temperature.

Either the Kelvin or the Celsius temperature scale can be used in gas law calculations.

Diethyl ether historically was used as an anesthetic. Currently, it is a very important solvent. The freezing point and boiling point of diethyl ether are -116 °C and 37 °C, respectively. Diethyl ether is a solid at 0 °C.

Specific heat is the conversion factor that allows for the calculation of energy based on temperature changes.

Filling the blank with the appropriate term from the list below. Charles's Boyle's Guy-Lussac's Combined Gas -The variation in pressure with temperature is defined by ____________________law.

Filling the blank with the appropriate term from the list below. Charles's Boyle's Guy-Lussac's Combined Gas -The effect of increasing the temperature on the volume of a gas can be calculated by using _________law.