Unit 9 Review

Obavezno

1

25 C is

225 K

298 K

248 K

Obavezno

1

Which pressure is the highest?

1 mm Hg

101.3 k Pa

760 torr

2 atm

Obavezno

1

Which of the following gases will have the highest speed if they have the same kinetic energy?

He

Br₂

H₂

NO₂

Obavezno

1

The pressure in a gas tank is maintained at a constant 2.50 atm with a movable piston.
On a day when the temperature is 25.00°C, the volume of gas in the tank is 5550 L.
What would be the volume of the same quantity of gas on a day when the temperature is 31.00°C?

5662 L

5440 L

6500 L

6882 L

Obavezno

1

Why does increasing the temperature cause the pressure to increase (assuming the volume remains constant)?

The particles are moving less and collide with the sides of the container less frequently.

The particles are moving more and collide with the sides of the container more frequently.

The particles are moving more and collide with the sides of the container less frequently.

The particles are moving less and collide with the sides of the container more frequently.

Obavezno

1

2.5 mol of helium gas are at STP. What must be the size (volume) of the tank interior?

22.4 L

0.11 L

56 L

6.022 x 10²³ L

Obavezno

1

2 H₂(g) + O₂ (g) --> 2 H₂O (l)
If a 100 L tank contains O₂ at a pressure of 27.5 atm at 25°C, what mass of hydrogen will react?

203 g

454 g

505 g

Unit 9 Review

25 C is

Which pressure is the highest?

Which of the following gases will have the highest speed if they have the same kinetic energy?

The pressure in a gas tank is maintained at a constant 2.50 atm with a movable piston. On a day when the temperature is 25.00°C, the volume of gas in the tank is 5550 L. What would be the volume of the same quantity of gas on a day when the temperature is 31.00°C?

Why does increasing the temperature cause the pressure to increase (assuming the volume remains constant)?

2.5 mol of helium gas are at STP. What must be the size (volume) of the tank interior?

2 H2(g) + O2 (g) --> 2 H2O (l)If a 100 L tank contains O2 at a pressure of 27.5 atm at 25°C, what mass of hydrogen will react?

25 C is

Which pressure is the highest?

Which of the following gases will have the highest speed if they have the same kinetic energy?

The pressure in a gas tank is maintained at a constant 2.50 atm with a movable piston. On a day when the temperature is 25.00°C, the volume of gas in the tank is 5550 L. What would be the volume of the same quantity of gas on a day when the temperature is 31.00°C?

Why does increasing the temperature cause the pressure to increase (assuming the volume remains constant)?

2.5 mol of helium gas are at STP. What must be the size (volume) of the tank interior?

2 H2(g) + O2 (g) --> 2 H2O (l)If a 100 L tank contains O2 at a pressure of 27.5 atm at 25°C, what mass of hydrogen will react?

The pressure in a gas tank is maintained at a constant 2.50 atm with a movable piston.
On a day when the temperature is 25.00°C, the volume of gas in the tank is 5550 L.
What would be the volume of the same quantity of gas on a day when the temperature is 31.00°C?

2 H₂(g) + O₂ (g) --> 2 H₂O (l)
If a 100 L tank contains O₂ at a pressure of 27.5 atm at 25°C, what mass of hydrogen will react?

The pressure in a gas tank is maintained at a constant 2.50 atm with a movable piston.
On a day when the temperature is 25.00°C, the volume of gas in the tank is 5550 L.
What would be the volume of the same quantity of gas on a day when the temperature is 31.00°C?

2 H₂(g) + O₂ (g) --> 2 H₂O (l)
If a 100 L tank contains O₂ at a pressure of 27.5 atm at 25°C, what mass of hydrogen will react?