Pressure Concepts and Gas Laws

A measure of force exerted per unit area; in chemistry, most commonly the force exerted by gas molecules as they strike the surfaces around them.

Millimeter of Mercury

An instrument used to measure atmospheric pressure.

<p>A unit of pressure based on the average pressure of air at sea level.</p> Signup and view all the answers

<p>Pascal (Pa)</p> Signup and view all the answers

<p>An instrument used to determine the pressure of a gaseous sample.</p> Signup and view all the answers

<p>The volume of a gas is inversely proportional to its pressure.</p> Signup and view all the answers

<p>The volume of a gas is directly proportional to its temperature.</p> Signup and view all the answers

<p>The volume of a gas is directly proportional to its amount in moles.</p> Signup and view all the answers

<p>PV = nRT</p> Signup and view all the answers

<p>A gas that exactly follows the ideal gas law.</p> Signup and view all the answers

<p>0.0821 L<em>atm/K</em>mol</p> Signup and view all the answers

<p>The volume occupied by one mole of a substance.</p> Signup and view all the answers

<p>Conditions of T = 0° C (273 K) and P = 1 atm.</p> Signup and view all the answers

<p>The pressure due to any individual component in a gas mixture.</p> Signup and view all the answers

<p>The sum of the partial pressures of the components in a gas mixture must equal the total pressure.</p> Signup and view all the answers

<p>The number of moles of a component in a mixture divided by the total number of moles in the mixture.</p> Signup and view all the answers

<p>A physiological condition caused by low levels of oxygen.</p> Signup and view all the answers

<p>An increased level of oxygen in the blood, resulting in symptoms like muscle twitching and convulsions.</p> Signup and view all the answers

<p>A physiological condition caused by an increased partial pressure of nitrogen.</p> Signup and view all the answers

<p>The partial pressure of a vapor in dynamic equilibrium with its liquid.</p> Signup and view all the answers

<p>A model of an ideal gas as a collection of point particles in constant motion undergoing completely elastic collisions.</p> Signup and view all the answers

<p>The average distance that a molecule in a gas travels between collisions.</p> Signup and view all the answers

<p>The process by which a gas spreads through a space occupied by another gas.</p> Signup and view all the answers

<p>The process by which a gas escapes from a container into a vacuum through a small hole.</p> Signup and view all the answers

<p>The extrapolation of the ideal gas law that considers the effects of intermolecular forces and particle volume in a nonideal gas.</p> Signup and view all the answers