Physics, 18.10.2019 14:30, seth3336

What happens when to the volume of a gas when it's temperature decreases if the pressure is held constant?

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Chemistry, 20.07.2019 17:50, richellemjordan

You have 4 moles of a gas in a 50 l container held at 2 atm pressure. currently the temperature is 27 ºc. r = 0.0821 l*atm/(mol*k) • what is the temperature in kelvins? k = 27 +273.15 = 300.15 • assuming that everything else remains constant, what will happen to the pressure if the temperature decreases to -15 ºc? the pressure should decrease as well, i believe • if you increase the number of moles to 6 moles, increase temperature to 400k and reduce the volume to 25 l, what will the new pressure be? i have no idea what formula to use

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Chemistry, 25.08.2019 17:20, novesparks

1. when the kelvin temperature of an enclosed gas doubles, the particles of the gas (1 point) move faster strike the walls of the container with less force decrease in average kinetic energy decrease in volume 2. the volume of a gas is reduced from 4 l to 0.5 l while the temperature is held constant. how (1 point) 2. the volume of a gas is reduced from 4 l to 0.5 l while the temperature is held constant. how does the gas pressure change? (1 point) it increases by a factor of four. it decreases by a factor of eight. it increases by a factor of eight. it increases by a factor of two. 3. charles's law states that (1 point) the pressure of a gas is inversely proportional to its temperature in kelvins the volume of a gas is directly proportional to its temperature in kelvins the pressure of a gas is directly proportional to its temperature in kelvins the volume of a gas is inversely proportional to its temperature in kelvins 4. a sample of gas occupies 17 ml at –112°c. what volume does the sample occupy at 70°c? (1 point) 10.6 ml 27 ml 36 ml 8.0 ml 5. the combined gas law relates which of the following? (1 point) pressure and volume only temperature and pressure only volume and temperature only temperature, pressure, and volume

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Chemistry, 16.10.2019 23:00, neariah24

One question in chem ! 1.which of the following does not correctly describe the behavior of a gas? a. at constant temperature and moles of gas, as the volume increases, the pressure decreases. b. at constant volume and temperature, as the moles of gas increases, the pressure decreases. c. at constant temperature and moles of gas, if the volume is halved, the pressure is doubled. d. at constant volume and temperature, if the moles of gas are tripled, the pressure is tripled.

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Chemistry, 28.10.2019 00:43, Shu11

(answer whatever you know) 4.the volume of a gas collected when the temperature is 8ºc and the pressure is 710.5 mm hg measures 14.3 ml. what is the calculated volume of the gas at 19.8ºc and 735.1 mm hg? a.14.4 ml b.34.2 ml c.0.0292 ml d.0.0694 ml 5.calculate the approximate temperature of a 0.56 mol sample of gas at 745 mm hg and a volume of 10 l. a.–59.8ºc b.213ºc c.0.00469ºc d.162000ºc 6.the volume of a gas is 5.55. l when the temperature is 1 ºc. if the temperature is increased to 11 ºc without changing the pressure, what is the new volume? a.0.187. ml b.5.75. ml c.5.35. ml d.0.174. ml 7.a pressure of 725 mm hg equals a.5439 torr. b.0.009417 kpa. c.96.63 kpa. d.1.048 torr. 8.the principle that under similar pressures and temperatures, equal volumes of gases contain the same number of molecules is attributed to a.avogadro. b.graham. c.dalton. d.boyle. 9.if the temperature of a fixed quantity of gas decreases and the pressure remains unchanged, a.its volume increases. c.its density decreases. b.its volume is unchanged. d.its volume decreases. 10.convert the pressure 2.99 atm to mm hg. a.0.3985 hg b.22.43 mm hg c.0.003934 mm hg d.2272 mm hg 11.calculate the approximate volume of a 0.605 mol sample of gas at 14°c and a pressure of 1.11 atm. a.1.60 l b.12.8 l c.0.626 l d.0.0779 l 12.the volume of a sample of oxygen is 275 ml when the pressure is 1.09 atm and the temperature is 26.9ºc. at what temperature is the volume 0.95 l and the pressure 0.505 atm? a.480 k b.43.1 k c.0.0232 k d.0.00208 k 13.standard pressure is exactly a.760 atm. b.1 atm. c.101 atm. d.101.325 atm.

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