Warris derie
Practice Questions
Chapter 5
States of Matter:
1.
Identify distinguishing properties of solids, liquids and gases.
Gas Pressure:
1.
Calculate each of the following:
(show your work)
i. 740 torr = _______________ atm ii. 1.15 atm = _______________ in Hg iii. 780 mm Hg = _____________ Pa
Gas Laws:
1. If a sample of 4.17 L of ethane gas at 95 C is cooled to -80 C at a constant pressure, what is the new volume?
2. Calculate the volume occupied by 8.072g of neon gas at a temperature of 35C and a pressure of 1140 torr. (R = 0.0821 L.atm/mol.K)
3. Methane gas (CH4) is compressed from 28 L to 2.5 L at a constant temperature.
The final pressure is 4.2 atm. What was the original pressure?
4. A sample of air has a volume of 550.0mL at 106oC. At what temperature will its volume be 700.0mL at constant pressure?
5. A sample of gas at 104oC and 0.870 atm occupies a volume of 3.0L. What volume would this gas occupy at 60oC and 1.7 atm?
6. A mixture of three gases A, B and C is at a total pressure of 8.15 atm. The partial pressure of gas A is 2.70 atm; that of gas B is 2.09atm. What is the partial pressure of gas C?
7. Find the molar mass of a gas if 0.250g occupies 1.01L at 31oC and 1.44 atm.
8. What is the volume in liters of 2.00 mol of F2 at 100 K and 15.0 atm?
9. Find the mass in grams of 4.2 L of O2 at STP
Kinetic Molecular Theory:
1. List the six postulates of the Kinetic Molecular Theory
Attractive Forces Between Molecules:
1. List two intramolecular forces:
2. List three intermolecular forces in order from strongest to weakest. Identify the type(s) of molecules involved with each intermolecular force.
Heating Curve of Water:
1. Calculate the amount of heat required to increase the temperature of 150g of ice from -20 oC to 150 oC .
2. Calculate the mass of water present of if 25 kcal were able to increase its temperature from 22 oC to 115 oC.
Phase Diagram:
1. Sketch a phase diagram for
Chapter 5
States of Matter:
1.
Identify distinguishing properties of solids, liquids and gases.
Gas Pressure:
1.
Calculate each of the following:
(show your work)
i. 740 torr = _______________ atm ii. 1.15 atm = _______________ in Hg iii. 780 mm Hg = _____________ Pa
Gas Laws:
1. If a sample of 4.17 L of ethane gas at 95 C is cooled to -80 C at a constant pressure, what is the new volume?
2. Calculate the volume occupied by 8.072g of neon gas at a temperature of 35C and a pressure of 1140 torr. (R = 0.0821 L.atm/mol.K)
3. Methane gas (CH4) is compressed from 28 L to 2.5 L at a constant temperature.
The final pressure is 4.2 atm. What was the original pressure?
4. A sample of air has a volume of 550.0mL at 106oC. At what temperature will its volume be 700.0mL at constant pressure?
5. A sample of gas at 104oC and 0.870 atm occupies a volume of 3.0L. What volume would this gas occupy at 60oC and 1.7 atm?
6. A mixture of three gases A, B and C is at a total pressure of 8.15 atm. The partial pressure of gas A is 2.70 atm; that of gas B is 2.09atm. What is the partial pressure of gas C?
7. Find the molar mass of a gas if 0.250g occupies 1.01L at 31oC and 1.44 atm.
8. What is the volume in liters of 2.00 mol of F2 at 100 K and 15.0 atm?
9. Find the mass in grams of 4.2 L of O2 at STP
Kinetic Molecular Theory:
1. List the six postulates of the Kinetic Molecular Theory
Attractive Forces Between Molecules:
1. List two intramolecular forces:
2. List three intermolecular forces in order from strongest to weakest. Identify the type(s) of molecules involved with each intermolecular force.
Heating Curve of Water:
1. Calculate the amount of heat required to increase the temperature of 150g of ice from -20 oC to 150 oC .
2. Calculate the mass of water present of if 25 kcal were able to increase its temperature from 22 oC to 115 oC.
Phase Diagram:
1. Sketch a phase diagram for