2 Litres of a gas is at 740mm of Hg. What is its volume at standard pressure?
Answers
Boyle's Law Worksheet Abbreviations atm - atmosphere mm Hg - millimeters of mercury torr - another name for mm Hg Pa Pascal (kPa = kilo Pascal) K-Kelvin °C-degrees Celsius Conversions K = °C + 273 1 cm³ (cubic centimeter) = 1 mL (milliliter) 1 dm² (cubic decimeter) = 1 L (liter) = 1000 mL Standard Conditions 0.00 °C 273 K 1.00 atm = 760.0 mm Hg = 101.325 kPa = 101,325 Pa Example # 1: 2.00 L of a gas is at 740.0 mmHg pressure. What is its volume at standard pressure? Answer: this problem is solved by inserting values into P.V1 = P2V2. (740.0 mmHg) (2.00 L) =(760.0 mmHg) (x) 1.95L Problems: 1. A gas occupies 12.3 liters at a pressure of 40.0 mm Hg. What is the volume when the pressure is increased to 60.0 mm Hg? 12.3L 90.0 mmilty = V₂ x 600mmilty 80 V₂ = 8.20L Gommig 60 mm Hg 2. If a gas at 25.0 °C occupies 3.60 liters at a pressure of 1.00 atm, what will be its volume at a pressure of 2.50 atm? 25.0° C = 2981 3.60L · 1 atm = V₂ · 2.50 atm 2.50 atm V₂ = 1,44 L 2.50 atm 3. A gas occupies 1.56 L at 1.00 atm. What will be the volume of this gas if the pressure becomes 3.00 atm? 1.56 L x 1.00 atm = 3atm = V₂ = ·520 L 3atm 3atm 4. A gas occupies 11.2 liters at 0.860 atm. What is the pressure if the volume becomes 15.0 L? 11.2L 0.860 atm = P x 15.0L = .642 atm 15.01 15.0L 5. 500.0 mL of a gas is collected at 745.0 mm Hg. What will the volume be at standard pressure? = V₂ × 760mm Ng x 490.1ML 760 mmHg 760 mm Hg 6. Convert 350.0 mL at 740.0 mm of Hg to its new volume át standard pressure. 350.0 mL x 740.0 mm Neg. V₂ x 760.0 mm Hg 760 mm Hg 760.0 mm Hg 7. Convert 338 L at 63.0 atm to its new volume at standard pressure. latm 340.8 ML 338L x 630 atm = V₂ = 21294 L = 2.132 XID" 1 atm 33 f