Problems Using Boyle's Law - PDF
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Australian Catholic University
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Summary
This document contains a series of practice questions related to Boyle's Law, which describes the relationship between the pressure and volume of a gas. It includes a worked example and several problems to solve, covering topics such as pressure conversions and volume calculations. The problems are suitable for high school chemistry students.
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Problems Using Boyle’s Law Worked Example: Problem #1: A gas occupies 12.3 liters at a pressure of 40.0 mmHg. What is the volume when the pressure is increased to 60.0 mmHg? 1. List what you know and what you don’t know: P1 = 40.0; V1 = 12.3; P2 = 60.0; V2 = ? 2. Write the formu...
Problems Using Boyle’s Law Worked Example: Problem #1: A gas occupies 12.3 liters at a pressure of 40.0 mmHg. What is the volume when the pressure is increased to 60.0 mmHg? 1. List what you know and what you don’t know: P1 = 40.0; V1 = 12.3; P2 = 60.0; V2 = ? 2. Write the formula you will be using: P1V1 = P2V2 3. Substitute your values into the formula:(40.0 mmHg)(12.3 liters) = (60.0 mmHg) (x) 4. Solve the equation for x: x = 8.20 L Note three significant figures. _______ * 1 atm (atmospheric pressure, “atmosphere”, or standard pressure) = 760mmHg ** 1 torr = 1mmHg Problem #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? Problem #3: To what pressure must a gas be compressed in order to get into a 3.00 cubic foot tank the entire weight of a gas that occupies 400.0 cu. ft. at standard pressure? Problem #4: 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? Problem #5: A gas occupies 11.2 liters at 0.860 atm. What is the pressure if the volume becomes 15.0 L? Problem #6: 500.0 mL of a gas is collected at 745.0 mmHg. What will the volume be at standard pressure? Problem #7: Convert 350.0 mL at 740.0 mmHg to its new volume at standard pressure. Problem #8: Convert 338 L at 63.0 atm to its new volume at standard pressure. Problem #9: Convert 273.15 mL at 166.0 kPa to its new volume at standard pressure. Problem #10: Convert 77.0 L at 18.0 mmHg to its new volume at standard pressure. Problem #11: When the pressure on a gas increases, will the volume increase or decrease? Problem #12: If the pressure on a gas is decreased by one-half, how large will the volume change be? Problem #13: A gas occupies 4.31 liters at a pressure of 0.755 atm. Determine the volume if the pressure is increased to 1.25 atm. Problem #14: 600.0 mL of a gas is at a pressure of 8.00 atm. What is the volume of the gas at 2.00 atm? Problem #15: 400.0 mL of a gas are under a pressure of 800.0 torr. What would the volume of the gas be at a pressure of 1000.0 torr? Bonus Problem: A particular balloon is designed by its manufacturer to be inflated to a volume of no more than 2.5 liters. If the balloon is filled with 2.0 liters of helium at sea level (101.3 kPa), and rises to an altitude at which the boiling temperature of water is only 88 degrees Celsius, will the balloon burst?
