Unit 6 Bonus Points Review

What is the new volume of the gas if the pressure on 350 L of oxygen at 720 mm Hg is decreased to 600 mm Hg?

• 420 L
• 29.16 L
• 4200.0 L
• 291.6 L

A gas occupies 4.98 L at 2.6 atm of pressure. What volume does it occupy at 1.8 atm pressure?

• 12.9 L
• 0.72 L
• 7.2 L
• 3.44 L

A gas at a volume of 4 liters is at a pressure of 2 atm. The volume is changed to 16 Liters, what must the new pressure be?

• 2 atm
• 12 atm
• 10 atm
• 0.5 atm

A container holds three gases: oxygen, carbon dioxide, and helium. The partial pressures of the three gases are 2.00 atm, 3.00 atm, and 4.00 atm, respectively. What is the total pressure inside the container?

• 2 atm
• 4 atm
• 3 atm
• 9 atm

A mixture of hydrogen, nitrogen, and water vapor has a total pressure of 864 mmHg. The partial pressure of hydrogen is 220 mmHg and that of nitrogen is 410 mmHg. What is the partial pressure of water vapor?

• 234 mmHg
• 1.37 mmHg
• 2.64 mmHg
• 1, 494 mmHg

Three gases, Ar, N2 and H2 are mixed in a 500L container. Ar has a pressure of 255 torr, N2 has a pressure of 228torr and H2 has pressure of 752torr. What is the total pressure in the container?

• 483torr
• 270torr
• 1235torr

A balloon with a volume of 200 mL at 30 ^οC is submerged in hot water to obtain a temperature of 50 ^οC.  What will happen to the volume of the balloon if the pressure remains the same?

• the volume of the balloon will become higher than 200 mL
• the volume of the balloon will become lower than 200 mL
• the volume of the balloon will stay the same
• there is no enough data

There are 40 liters of helium in a balloon at 100 K. If the temperature of the balloon is increased to 200 K, what will the new volume of the balloon be?

• 80 L
• 45 L
• 54 L
• 45.33 L

The volume of a gas at 25^ο C is 3.8 L.  What will be the volume of that gas at 57 ^ο C if the pressure is held constant?

• 8.66 L
• 4.21 L
• 6.34 L
• 3.46 L

The oxygen tanks on the sideline can be very dangerous if heated. Suppose an oxygen tank has a pressure of 120 atm at a room temperature of 25°C. If the temperature on the turf or field increases to 51°C, what will the resulting pressure of the oxygen tank be if the volume and amount of gas does not change?

• 130 atm
• 804 atm
• 1.30 atm
• 254 atm

Tags

NGSS.HS-PS1-5