Chemistry
Chemistry, 13.07.2019 18:00, Queen1601

What is the final volume of a gas that initially occupies 2.50 l at and is subsequently heated to?

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Engineering, 06.07.2019 05:10, leshia39
Agas contained in a piston-oylinder assembly is initially at p1=100 ibf/ft^2? and occupies a volume of 3.75 ft. the gas is compressed to a pressure p2=500 ibf/ft^2 and a final volume of 0.5 ft. during the process, the relationship between pressure and volume is given as p= a +bv, where a and b are constants a)-determine the values and units for a and b b)-determine the volume, in ft, at an intermediate state where the pressure is 300 ibt/t2.
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Chemistry, 25.07.2019 11:50, bigboy43
What is the final volume of a gas that initially occupies 2.50 l at 298 k and is subsequently heated to 334 k?
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Chemistry, 31.08.2019 12:50, homework1911
Are these answers correct? 1. a gas occupies 30 l at 760 mm hg. what is its volume at 350 mm hg? p1*v1 = p2*v2 760 mm hg *30 l = 350 mm hg * v2 v2 = 22800 mm hg*l/350 mm hg v2 = about 65.14 l 2. a gas occupies 500 ml at 1 atm. what is its pressure if the volume becomes 1500 ml? p1*v1 = p2*v2 1 atm*500 ml = p2*1500 ml 500 atm*ml/1500 ml = p2 p2 = 1/3 atm 3. if a gas occupies 250 ml at 25°c, what will its volume be at 57°c? 25°c + 273 = 298°k; 57°c + 273 = 330°k v1/t1 = v2/t2 250 ml/298°k = v2/330°k 0.84 ml/k*330°k = v2 v2 = about 276.85 ml 4. what was the original temperature of a 2 l sample of gas if it initially had the volume 5 l at 27°c? 27°c + 273 = 298°k v1/t1 = v2/t2 5 l/298°k = 2 l/t2 2 l/(0.017 l/k)= t2 t2 = 119.2°k = -153.8°c 5. at what pressure would 100 ml of a gas be found if it began at 500 ml at 2.5 atm? p1*v1 = p2*v2 2.5 atm*500 ml = p2*100 ml 125 atm*ml/100 ml = p2 p2 = 1.25 atm 6. what is the volume of a gas at 275 mm hg if it occupied 750 ml at 1000 mm hg? p1*v1 = p2*v2 1000 mm hg*750 ml = 275 mm hg*v2 75 mm hg*ml/275 mm hg = v2 v2 = about 2727. 27 ml 7. a gas occupies 60 l at 250°k and 1 atm. what is its volume at 250°c and 1.5 atm? 250°c + 273 = 523°k p1*v1/t1 = p2*v2/t2 1 atm*60 l/250°k = 1.5 atm*v2/523°k 0.24 (atm*l/k)*523°k = 1.5 atm*v2 125.52 (atm*l)/1.5 atm = v2 v2 = 83.68 l 8. what is the final temperature in celsius of a gas occupying 3.25 l at 750 mm hg if it occupied 2250 ml at 37°c and 600 mm hg? 37°c + 273 = 310°k; 2250 ml = 2.25 l p1*v1/t1 = p2*v2/t2 600 mm hg*2.25 l/310°k = 750 mm hg*3.25 l/t2 2437.35 mm hg*l/ (4.35 mm hg*l/k) = t2 t2 = 559.69°k t2 = about 286.69°c
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