Charles Gas Law
Charles Law is the relationship between?
temperature and volume
Temperature is always expressed in?
Kelvin
What's the molecular weight for CO2?
44g
Grahams law states that rate of effusion/diffusion of a gas is _______ proportional to its molecular weight.
inversely
As temperature increases, what happens to volume?
Increases
What is STP?
Standard Temperature and Pressure (273k and 1 atm)
Define barometer:
A device used to measure atmospheric pressure.
Write the formula for Grahams law
R2/R1 = √M1/ M2
Give the formula for Charles Law
V1/T1 = V2/T2
What is the formula of the ideal gas law?
PV = nRT
Define catalyst:
Substances that help a reaction to proceed using the least amount of activation energy.
Name three units used in Graham’s law.
Rate, speed and velocity
A container containing 8.00 L of a gas is collected at 100 K and then allowed to expand to 20.0 L. What must be the new temperature?
250 K
Calculate the unknown variable: P=2.00 atm V=? N=5 mol T=10*C (PV = nRt)
58.085
What's the empirical formula for C2H2?
CH
Diffusion occurs when gas ____________. Effusion occurs when a gas ___________.
molecules disperse throughout a container, passes through an opening that is smaller than the mean free path of the particles
The volume of a sample of gas is initially at 28 degrees Celsius and 158 mL which then increases to 450 mL. What is the final temperature of the sample of gas, if the pressure in the container is kept constant? (Hint: answer will be in Celsius)
584 C
Calculate the unknown variable: P=1.00 atm V=5L N=2mol T=? (PV=nRT)
30.45 K
The pressure of a mixture of nitrogen, carbon dioxide, and oxygen is 3.8 atm. What is the partial pressure of oxygen if the partial pressures of the nitrogen and carbon dioxide are 0.7atm and 1.2atm?
1.9 atm
If neon gas travels at 350 m/s at a given temperature, calculate the velocity of butane, C4H10, at the same temperature.
205.9m/s
process: 350/V2 = √58/20 350/V2 = √2.9 350/V2 = 1.7 V2 = 350/1.7