Pressure and Gas
1) A sample of gas (24.2 g) initially at 4.00 atm was compressed from 8.00 L to 2.00 L at constant temperature. After the compression, the gas pressure was __________ atm.
A) 4.00 B) 2.00 C) 1.00 D) 8.00 E) 16.0
2) A sample of a gas (5.0 mol) at 1.0 atm is expanded at constant temperature from 10 L to 15 L. The final pressure is __________ atm.
A) 1.5 B) 7.5 C) 0.67 D) 3.3 E) 15
3) A balloon originally had a volume of 4.39 L at 44 °C and a pressure of 729 torr. The balloon must be cooled to __________°C to reduce its volume to 3.78 L (at constant pressure).
A) 38 B) 0 C) 72.9 D) 273 E) 546
4) If 3.21 mol of a gas occupies 56.2 L at 44 °C and 793 torr, 5.29 mol of this gas occupies __________ L under these conditions.
A) 14.7 B) 61.7 C) 30.9 D) 92.6 E) 478
5) A gas originally at 27 °C and 1.00 atm pressure in a 3.9 L flask is cooled at constant pressure until the temperature is 11 °C. The new volume of the gas is __________ L.
A) 0.27 B) 3.7 C) 3.9 D) 4.1 E) 0.24
6) If 50.75 g of a gas occupies 10.0 L at STP, 129.3 g of the gas will occupy __________ L at STP.
A) 3.92 B) 50.8 C) 12.9 D) 25.5 E) 5.08
7) A sample of an ideal gas (3.00 L) in a closed container at 25.0 °C and 76.0 torr is heated to 300 °C. The pressure of the gas at this temperature is __________ torr.
A) 912 B) 146 C) 76.5 D) 39.5 E) 2.53 ×
8) A sample of a gas (1.50 mol) is contained in a 15.0 L cylinder. The temperature is increased from 100 °C to 150 °C. The ratio of final pressure to initial pressure is __________.
A) 1.50 B) 0.667 C) 0.882 D) 1.13 E) 1.00
9) The reaction of 50 mL of gas with 50 mL of gas via the equation: will produce a total of __________ mL of products if pressure and temperature are kept constant.
A) 100 B) 50 C) 200 D) 150 E) 250
10) The reaction of 50 mL of gas with 150 mL of gas to form ammonia via the equation:
A) 4.00 B) 2.00 C) 1.00 D) 8.00 E) 16.0
2) A sample of a gas (5.0 mol) at 1.0 atm is expanded at constant temperature from 10 L to 15 L. The final pressure is __________ atm.
A) 1.5 B) 7.5 C) 0.67 D) 3.3 E) 15
3) A balloon originally had a volume of 4.39 L at 44 °C and a pressure of 729 torr. The balloon must be cooled to __________°C to reduce its volume to 3.78 L (at constant pressure).
A) 38 B) 0 C) 72.9 D) 273 E) 546
4) If 3.21 mol of a gas occupies 56.2 L at 44 °C and 793 torr, 5.29 mol of this gas occupies __________ L under these conditions.
A) 14.7 B) 61.7 C) 30.9 D) 92.6 E) 478
5) A gas originally at 27 °C and 1.00 atm pressure in a 3.9 L flask is cooled at constant pressure until the temperature is 11 °C. The new volume of the gas is __________ L.
A) 0.27 B) 3.7 C) 3.9 D) 4.1 E) 0.24
6) If 50.75 g of a gas occupies 10.0 L at STP, 129.3 g of the gas will occupy __________ L at STP.
A) 3.92 B) 50.8 C) 12.9 D) 25.5 E) 5.08
7) A sample of an ideal gas (3.00 L) in a closed container at 25.0 °C and 76.0 torr is heated to 300 °C. The pressure of the gas at this temperature is __________ torr.
A) 912 B) 146 C) 76.5 D) 39.5 E) 2.53 ×
8) A sample of a gas (1.50 mol) is contained in a 15.0 L cylinder. The temperature is increased from 100 °C to 150 °C. The ratio of final pressure to initial pressure is __________.
A) 1.50 B) 0.667 C) 0.882 D) 1.13 E) 1.00
9) The reaction of 50 mL of gas with 50 mL of gas via the equation: will produce a total of __________ mL of products if pressure and temperature are kept constant.
A) 100 B) 50 C) 200 D) 150 E) 250
10) The reaction of 50 mL of gas with 150 mL of gas to form ammonia via the equation: