Question

A gas sample is held at constant pressure. The gas occupies 3.62 L of volume when the temperature is 21.6°C. Determine the temperature at which the volume of the gas is 3.45 L 26 d) 295 K 309 K b) 281 K c) 20.6 K a) 27. The temperature of a specific amount of gas in a sealed container changes from 20.0°C to 40.0°C. If the volume remains constant, the pressure will change from 755 mmHg to a) 1510 mmHg d) 807 mmHg b) 707 mmHg c) 378 mmHg If 2.10 mol of argon gas occupies a volume of 89.0 L, what volume will 2.45 mol of argon occupy under the same conditions of temperature and pressure? a) 76.3 L 28 c) 7.30 mL d) 89.0 L b) 104 L I A gas sample has a volume of 4.50 L when the temperature is 28 °C and the pressure is 1.00 atm. What will be the new volume of the gas when the temperature is changed to 0.0 C and the pressure to 850 torr? c) 0.15 L 29, b) 3.6 L d) 4.4 L a) 0.25 L A gas evolved during the fermentation of alcohol had a volume of 19.4 L at 17 °C and 746 mmHg. How many moles of gas were collected? a) 0.800 mol 30. b) 1.25 mol c) 10.5 mol d) 13.6 mol

Please answer & explain 26-30

Answer 1

PV=nRT PVAT prenum VAT + posztwo constant Vati I s3 & ² Vi= 3.452 V2 = 3.622 Ti =? T2 = 21.6+ 277=294.6 3 urix a.224.6k T, = 7 = VIT = 3.624 = 280.76k =287 27 7 = 206+277= 2931 TL= 404277 = 3 Bk P = 755 mm Its R = 2 Pith 755 m X 3131 293 Puz. 306. scommity = 807 mm 49.- Om ava 121 122 123 L n = 2.10m ~,= 89.04 n₂=2.45 V = ? mA 12 = 3.10 ml - V = n2V 2.45X SIL - 103.81L Scanned with 104L - CamScanny LE