Discovering Design With Chemistry, Chapter 10: It's A Gas, Review Questions from the chemistry book published by Berean Builders and written by Dr. Jay Wile. These problems focus on the combine gas law, ideal gas law, Avogadro's Law, and Dalton's law of partial pressure.
Match the term to the definition.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Charles's Law | arrow_right_alt | At a constant temperature, pressure an volume are inversely proportional to one another. |
Boiling Point | arrow_right_alt | At a constant pressure, temperature and volume are directly proportional to one another. |
Boyle's Law | arrow_right_alt | Extending a trend in data to situations for which no measurements have been made. |
Extrapolation | arrow_right_alt | Equal volume of all gases at the same temperature and pressure have the same number of molecules (or atoms, if the gas is not made of molecules). |
Avogadro's Law | arrow_right_alt | The temperature at which a liquid's vapor pressure is equal to the external air pressure. |
A pascal is a standard unit for measuring __________.
What does a barometer measure?
Why are inches of mercury and mm of mercury used as units for pressure?
If you put an inflated balloon into a container and then add lots more pressure to the container whithout changing the temperature, what will happen to the size of the balloon?
If you inflate a balloon at room temperature and then put it in a freezer that is at the same pressure, what will happen to the size of the balloon?
On an absolute temperature scale you can never get to or below what number?
What is the boiling point of water at 1 atm in kelvins? (give answer with two numbers after the decimal point)
Nitrogen condenses at 77 K. What is that temperature in degrees Celsius? (don't include units in your answer)
Fill in the blank: When extrapolating, a good scientist keeps the range of extrapolation ___________ compared to the range over which the data have been measured.
We use the Kelvin scale when working with gas laws because many of the laws require you to divide by temperature. It is not possible to divide when the temperature is equal to _______.
A piston contains 45.6 mL of gas at a pressure of 814 torr. If the temperature doesn't change, what is the volume of the gas at a pressure of 760.0 torr?
A flexible container is held at constant pressure. It starts with a volume of 1.2 liters at a temperature of 25.0 deg C. What is the volume if the temperature rises to 50.0 deg C?
A helium-filled ballon has a volume of 35.4 liters at an altitude where the temperature is 0.00 deg C and the pressure is 0.619 atm. It is brought back to the ground, where the temperature is 22.90 deg C, and its volume is 21.1 liters. What is the pressure on the ground?
Which will be more likely to produce ideal behavior in a gas?
Which will be more likely to produce ideal behavior in a gas?
Which will be more likely to produce ideal behavior in a gas?
How many moles of nitrogen are present in a 891 mL container at 23 deg C and 345 torr.
What is the volume of 10.0 grams of water vapor at 134.5 deg C and a pressure of 567 torr?
In the following decomposition of 150.0 grams of potassium chlorate (KClO3), what volume of oxygen is made at STP?
2KClO3 => 2KCl + 3O2
A chemist burns 567 liters of propane (C3H8). How many liters of carbon dioxide are made at 1.04 atm and 1995 deg C.
C3H8 + 5O2 => 3CO2 + 4H2O
A balloon is filled with 345 torr of oxygen gas and 416 torr of nitrogen gas. What is the mole fraction of oxygen?
A balloon is filled with 345 torr of oxygen gas and 416 torr of nitrogen gas. What is the mole fraction of nitrogen?
A container holds 0.34 moles of chlorine gas, 0.22 moles of xenon gas, and 0.56 moles of krypton gas. If the total pressure of the gases is 1.1. atm, match the partial pressures to the gas.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
krypton | arrow_right_alt | 0.22 |
xenon | arrow_right_alt | 0.33 |
chlorine | arrow_right_alt | 0.55 |
A camper boils water to cook dinner. He cooks the same dinner two nights in a row, but it takes longer for the same amount of the same dinner to cook on the second night. Which night has the lowest atmospheric pressure?
A chemist make hydrogen gas according to the equation:
2 Mg + 2HBr => MgBr2 + H2
She collects the hydrogen over water in which the reaction is taking place. If she collects 3.41 liters of hydrogen at 0.981 atm and 60.0 deg c, how many moles of hydrogen gas did she make? (use table on page 311 for this)