Props of Gas
What are the two values for standard temperature and pressure?
273K or 0 Celsius and 101.325 kPa
A sample of gas occupying 350.0 mL at 25.0 C is cooled to -25.0 C. What volume does it occupy if the pressure remains constant?
291 mL
22.4 L
What is a baby penguin called?
Chick
True or false:
The constant motion of gas particles results in diffusion.
What is true?
What scientist devised the law that states Ptotal=ΣPi?
John Dalton
What volume will 2.50 mol of a gas occupy at 283K and a pressure of 40.0 kPa?
147 L
True or False:
It is illegal to own just one guinea pig in Switzerland.
True
When gas moves through a tiny opening into an evacuated chamber. what is occurring?
Effusion.
A 500.0 mL sample of gas at a pressure of 70.93 kPa is transferred to 1050.0 mL vessel at a constant temperature. What is the pressure of the gas in the larger vessel?
33.77kPa
What is the molar mass of a gas that has a density of 1.25 g/L at STP?
28.0 g/mol
What is the name of the spacecraft that took the first Americans to the moon?
Saturn V rocket.
True or False:
Collisions in gas molecules are elastic and exchange energy without losing any energy.
What is true?
Who formulated a law stating that the total pressure of a mixture of gases equals the sum of the pressures of each individual gas?
John Dalton
How many liters of hydrogen are produces from 33. 5 L of zinc reacting with hydrochloric acid?
Zn+ 2HCI -> ZnCl2+H2
1.42 L
What does M&M stand for?
Mars and Murrie
The main reason that high pressures an squeeze gases into smaller volumes is that gases are...
What is compressible?
A sample of gas has a pressure of 202.65 kPa at 20.0 C. what pressure will exist when the gas is heated to 150.0 C?
293 kPa
How many moles of nitrogen gas occupies 14.7 L at STP?
0.656 mol N2
Where is the heart of a shrimp located?
In its head.