Chapter 6 - Gases

What is the formula for converting Celsius to Kelvin?

K = C + 273

What is the equivalent temperature in Kelvin for 100 Celsius?

373 Kelvin

What is the coldest potential temperature in Celsius?

-273 Celsius

What is the coldest potential temperature in Kelvin?

0 Kelvin

For volume, what is the mL and cubic centimetre equivalent to one litre?

1L = 1000mL = 1000 cm3

For pressure, what is 1 atm equivalent to in mmHg?

760 mmHg

For pressure, what is 760 mmHg equivalent to in torr?

760 torr

Under what conditions do gases behave most ideally (similar to ideal gases)?

Low pressure and high temperature

What is the formula for ideal gas law?

PV = nRT

Is pressure and volume directly or inversely proportional?

Inversely proportional

Is temperature and volume directly or inversely proportional?

Directly proportional

Is pressure and temperature directly or inversely proportional?

Directly proportional

How does the pressure change in a sample of ideal gas given that the volume is doubled?

Pressure is halved

How does the volume change in a sample of ideal gas given that the temperature is quadrupled?

The new volume will be quadruple that of the original volume

What temperature and pressure conditions constitute as STP (standard temperature and pressure)?

273 Kelvin for temperature and pressure of 1 atm

At STP, one mole of gas occupies how large of a volume?

22.4 L

What does Boyle's law state?

Pressure and volume are inversely proportional under constant temperature. P∝1/V

What does Charles' law state?

Volume and temperature are directly proportional under constant pressure. V∝ T

What does Avogadro's law state regarding gases?

Equal volumes of all gasses at the same temperature and pressure have the same number of molecules. V∝n

What does Dalton's law of partial pressure state?

In a mixture of gases, the total pressure of the mixture is equal to the summation of partial pressures of individual gases

What is the formula for calculating the partial pressure of an individual gas when given the total pressure and mole fraction of the individual gas?

Partial pressure = (mole fraction of gas) X (total pressure)

What does Graham's law of effusion state?

Rate of effusion of a gas is inversely proportional to the square root of its mass

Based on Graham's law of effusion, will a heavier or lighter weighted gas effuse faster?

The lighter gas will effuse faster

What is the formula for calculating density using the ideal gas law?

Density = (P) (molar mass) / RT