Physics, 27.08.2019 09:30, lavorisjonesjr1

When the temperature is constant, the volume of a gas will decrease as the pressure decreases. true or false?

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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, 11.10.2019 04:00, kylie252

Question 3 if the volume of a container is increased, the pressure of the gas in the container also increases (when the amount of gas and temperature are held constant). true false 2 points save answer question 4 to keep the pressure and temperature of a gas constant, the volume of the gas canister must remain constant as additional moles of gas are added. true false 2 points save answer question 5 if the moles and temperature of a gas are held constant, changes in the pressure and volume of the gas will be inversely proportional. true false 2 points save answer question 6 if the moles and temperature of a gas are held constant, the pressure of a gas doubles when: volume is halved volume is quadrupled volume is doubled volume is also held constant 3 points save answer question 7 a bike tire contains a fixed amount of gas at a constant pressure. initially, the tire contains 4.00 iters of air at 26 degrees celsius. when the temperature drops to 22 degrees celsius, the volume of the bike tire will decrease to 3.95 liters. true false 2 points save answer question 8 when using the ideal gas constant value, r = 0.0821, in an ideal gas law calculation, the units of temperature may be expressed as degrees celsius or kelvin. true false 2 points save answer question 9 one mole of a gas has an initial pressure of 2.5 atmospheres, an initial volume of 12.0 liters, and an initial temperature of 150 kelvin. what is the final temperature of a gas if the volume and the pressure are doubled? 75 k 300 k 600 k 1200 k 3 points save answer question 10 initially, a 4.0-liter compressible container of gas exerts a pressure of 2.08 atmospheres at a temperature of 275 kelvin. what is the pressure when the container is compressed to 2.5 liters and has a temperature of 323 kelvin? 1.5 atm 50 atm 3.9 atm 2.8 atm

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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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