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Exam 4: Energy and Physical Properties

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Question 21

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Which of the following correctly arranges the physical states of matter (gas - g, solid - s, liquid - l) in order of increasing energy of the particles (lowest to highest) ?

A) g < l < s
B) g < s < l
C) l < g < s
D) s < l < g

E) C) and D)
F) A) and C)

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Question 22

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Which of the following is a type of heterogeneous mixture?

A) suspension
B) solution
C) colloid
D) solvent

E) B) and D)
F) All of the above

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Question 23

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Which of the following does not affect the boiling point of a liquid?

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.

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.

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. -The cylinder was not secured and fell over, producing a sizable dent in the side. The pressure reading ____________________.

Consider the following three substances. Enter the letter of the appropriate substance in the blank provided.If none applies,enter the word none. -The substance capable of hydrogen bonding is _____.

Which of the following is the smallest unit of thermal energy?

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.

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.

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.

Consider the image given below of a pair of ammonia molecules.Complete the following sentences using the appropriate terms listed below. covalent bond hydrogen bond ion-dipole attraction donor acceptor -The lower middle hydrogen atom in the upper left ammonia molecule could be a hydrogen bond _____________________.

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 -_______________________is the type of force present between the particles shown in the image.

In which of the following processes does the energy of the water increase?

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

The law of conservation of energy states which of the following?

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

The volume of a gas in the upper atmosphere needs to be calculated. If the temperature is -41°C, what numerical value should be used in the calculation?

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 molecules is most likely to be a gas at room temperature?