Exam 7: Changes of State and Gas Laws

Consider a warm summer's day at the beach.While the sand feels warm on your feet, the water feels cool.Which statement is the BEST explanation for this phenomenon?

(Multiple Choice)

4.7/5

(41)

Question 21

Because gases are compressible, they become ________ when pressure is increased.

(Multiple Choice)

5.0/5

(38)

Question 22

Which of the following statements BEST describes the process that occurs when air is inhaled into the lungs?

(Multiple Choice)

5.0/5

(41)

Question 23

Which has a higher partial pressure of oxygen: inhaled air or exhaled air?

(Multiple Choice)

4.8/5

(42)

Question 24

Henry's constant for halothane, an anesthetic, is higher than that of ether.Which anesthetic is faster acting?

(Multiple Choice)

4.7/5

(31)

Question 25

What happens to acetone when it is boiled?

(Multiple Choice)

4.7/5

(30)

Question 26

You have a balloon containing 1.4 L of gas in it at standard temperature and pressure.Which conversion factor would you use to convert this number to moles?

(Multiple Choice)

4.9/5

(43)

Question 27

A gas having a volume of 11.2 L has added to it 0.50 mol of gas at the same temperature and pressure.The final volume is 22.4 L, again at the same temperature and pressure.How many moles were there originally?

(Multiple Choice)

4.8/5

(36)

Question 28

Which of the following properties does NOT describe the kinetic-molecular view of gases?

(Multiple Choice)

4.7/5

(37)

Question 29

A gas having a volume of 11.2 L has added to it 0.5 mol of gas at the same temperature and pressure.The final volume is 22.4 L, again at the same temperature and pressure.Which relationship is used to determine the number of moles of gas originally?

(Multiple Choice)

4.9/5

(38)

Question 30

How many calories of heat are required to raise the temperature of 15 g water (specific heat = 1.00 cal/g·°C)from 25 °C and 42 °C?

(Multiple Choice)

4.9/5

(42)

Question 31

On a cool morning (12 °C), a balloon is filled with 1.5 L of helium.By mid-afternoon, the temperature has soared to 32 °C.What is the new volume of the balloon?

(Multiple Choice)

4.8/5

(41)

Question 32

Which statement about the density of gases is FALSE?

(Multiple Choice)

4.8/5

(38)

Question 33

Which compound has the lowest boiling point?

(Multiple Choice)

4.9/5

(31)

Question 34

What change of phase is represented by B on the heating curve?

(Multiple Choice)

4.7/5

(41)

Question 35

A balloon at STP is heated.Which of the following statements about the relationship between volume and temperature is TRUE?

(Multiple Choice)

4.8/5

(37)

Question 36

Which statement BEST describes why steam burns are more severe than boiling water burns?

(Multiple Choice)

4.8/5

(33)

Question 37

Balloon A is placed into a container that has a higher pressure than atmospheric pressure.Which balloon would you predict to be the new size of balloon A?

(Multiple Choice)

4.9/5

(42)

Question 38

Which of the following statements BEST describes how hyperbaric oxygen therapy is used to treat carbon monoxide poisoning?

(Multiple Choice)

4.8/5

(33)

Question 39

Which of the following instruments is used to measure atmospheric pressure?

(Multiple Choice)

4.8/5

(38)

Question 40

Showing 21 - 40 of 99

Consider a warm summer's day at the beach.While the sand feels warm on your feet, the water feels cool.Which statement is the BEST explanation for this phenomenon?

Because gases are compressible, they become ________ when pressure is increased.

Which of the following statements BEST describes the process that occurs when air is inhaled into the lungs?

Which has a higher partial pressure of oxygen: inhaled air or exhaled air?

Henry's constant for halothane, an anesthetic, is higher than that of ether.Which anesthetic is faster acting?

What happens to acetone when it is boiled?

You have a balloon containing 1.4 L of gas in it at standard temperature and pressure.Which conversion factor would you use to convert this number to moles?

A gas having a volume of 11.2 L has added to it 0.50 mol of gas at the same temperature and pressure.The final volume is 22.4 L, again at the same temperature and pressure.How many moles were there originally?

Which of the following properties does NOT describe the kinetic-molecular view of gases?

A gas having a volume of 11.2 L has added to it 0.5 mol of gas at the same temperature and pressure.The final volume is 22.4 L, again at the same temperature and pressure.Which relationship is used to determine the number of moles of gas originally?

How many calories of heat are required to raise the temperature of 15 g water (specific heat = 1.00 cal/g·°C)from 25 °C and 42 °C?

On a cool morning (12 °C), a balloon is filled with 1.5 L of helium.By mid-afternoon, the temperature has soared to 32 °C.What is the new volume of the balloon?

Which statement about the density of gases is FALSE?

Which compound has the lowest boiling point?

What change of phase is represented by B on the heating curve?

A balloon at STP is heated.Which of the following statements about the relationship between volume and temperature is TRUE?

Which statement BEST describes why steam burns are more severe than boiling water burns?

Balloon A is placed into a container that has a higher pressure than atmospheric pressure.Which balloon would you predict to be the new size of balloon A?

Which of the following statements BEST describes how hyperbaric oxygen therapy is used to treat carbon monoxide poisoning?

Which of the following instruments is used to measure atmospheric pressure?

Matter, Energy, and Measurement

Atomic Structure and Radioisotopes

Ionic and Covalent Compounds

Molecular Geometry, Polarity, and Intermolecular

Chemical Quantities and Introduction to Reactions

Chemical Reactions: Energy, Rates, and Equilibrium

Mixtures, Solution Concentrations, and Diffusion

Acids and Bases, Ph, and Buffers

Introduction to Organic Chemistry:

Alcohols, Phenols, Thiols, Ethers, and Amines

The Carbonyl Containing Functional Groups

The Common Organic Reactions in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters