Dalton’s Law of Partial Pressures Practice Problems

These flashcards cover key vocabulary related to Dalton’s Law of Partial Pressures, including terms, definitions, and relevant concepts.

Dalton’s Law of Partial Pressures

The principle that the total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of each gas component.

Partial Pressure

The pressure exerted by a single component of a gas mixture, which can be calculated from the total pressure and the mole fraction of the gas.

Significant Figures

Digits in a number that contribute to its accuracy; non-zero digits, zeroes between significant digits, and trailing zeroes in the decimal portion are significant.

Atmosphere (atm)

A unit of pressure defined as being precisely equal to 101.325 kPa.

Torr

A unit of pressure, defined as 1/760 of an atmosphere, equivalent to 133.322 Pa.

KPa

Kilopascal, a unit of pressure where 1 kPa equals 1000 pascals.

lb/in²

Pounds per square inch, a unit of pressure also known as PSI.

Total Pressure

The sum of all the pressures exerted by each gas in a mixture.

Gas Law

Equations that relate the volume, temperature, and pressure of gases, including Boyle's Law, Charles's Law, and the Ideal Gas Law.

Percentage Composition

The percentage by mass of each component in a mixture, often used in chemistry to express the proportions of different substances.