Question

4.- I have 24 liters of gas in a piston at a temperature of 215 °C. If I cool the gas until the volume decreases to 10 liters, what will temperature of the gas be in °C 5.- A tank contains 748 mmHg of oxygen and 0.253 atm of helium calculate the total pressure in mmHg 6.- If I have 0.165 moles of gas at a temperature of 189k and a presure of 2.69 atm, what is the volume of the gas? 7.- 5.324 L of a gas is collected at 25.0*C and 846.0 mmHg. When the gas is changed to STP conditions, what is the new volume?

Answer 1

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4. from Vi = V2 Vi = 24L V2 = IOL T = 215°C = 215 + 273 =488k T2 = ? 24L CIOL 488k Tz Tz - 10*483 K = 203-33K T2 = 203.33–273 = -69.67 °C] 5. Toral pressure = Post Pure IP = 748 mm Hg L Pne 20.253 atm = 0.253 x 760 - 19 2.29 me fe 24 Toral prenuri - 748 + 192.25 = $940.28 mm Mg 6. PreORT VE ORT n=0.165mal T-I9K P265 am R=0.0821 Lam V = 0.165ml 0-0921 Luhm x 1896 2.6905 x k- V=0.9752 7. V = 5.324 L T =25€ = 20$ P = SY CASH P2 = 760 MMH =isom T = 273 V=945. x 5-9242 x 2735 295 KX 69MHz 5:43