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### 27 Cards in this Set

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 when pressure goes up volume goes down when volume goes up pressure goes down first person to do a systematic quantitative study of the pressure-volume relationship was the Anglo-Irish chemist named Robert Boyle (1662) states that for a given mass of gas at constant temperature, the volume of the gas varies inversely with pressure Boyle's law the product of the two variable quantities is constant in an inverse relationship the product of ______ and _______ of at any two sets of conditions is always constant at a given temperature pressure, volume P1 x V1 = P2 x V2 Boyle's law in 1787 the french physicist and balloonist _________ _________ investigated the quantitiatve effect of temperature on the volume of a gas at constant pressure Jacques Charles increase in volume of a gas with an increase in temperature decrease in volume of a gas with decrease of temperature the temperature-volume relationship for any gas can be measured only over a limited range because at low temperatures gases condense to form liquids from his quantitative studies, Charles observed that at constant pressure, the graph of gas volume versus temperature yields a straight line zero volume equals -273.15*C the temperature at which the average kinetic energy of gas particles would theoretically be zero absolute zero who established the absolute zero scale in 1848 Kelvin (William Thomson) states that the volume of a fixed mass of gas is directly proportional to its kelvin temperature if it's presure is kept constant Charles's Law the ratio of the two quantities that change is a constant in a _______ relationship direct V1/T1 = V2/T2 Charles's Law the graph of a relationship such as Charles's Law that is direct proportion is a straight line on a hot summer day, the pressure in a car tire decreases the increase illustrates a relationship that was discovered in 1802 by a French chemist named Joseph Gay-Lussac states that the pressure of a gas is directly proportional to the Kelvin temperature if the volume remains constant Gay-Lussac's Law because Gay-Lussac's law involves direct proportions, the ratios are equal at constant volume P1/T1 = P2/T2 Gay-Lussac's law combines the three gas laws combined gas law P1 x V1/T1 = P2 x V2/T2 combined gas law the combined gas law enables you to do caculations for situations in which none of the variables are constant