S
Samantha.
Guest
When you heat an air-filled, sealed can, what happens inside?
The collisions of air molecules against the wall of the can are weaker and less frequent.
The collisions of air molecules against the wall of the can are stronger and more frequent.
The collisions of air molecules against the wall of the can do not change.
2. You have 0.5 L of air in a rigid, sealed container at a pressure of 203 kPa and a temperature of 203 K. You heat the container to 273 K. What is the final pressure of the air?
102 kPa
151 kPa
310 kPa
273 kPa
3. You fill a tank with gas at 30°C and 101.5 kPa and seal it. You decrease the temperature to 10°C but keep the volume constant. What happens to the pressure? (Careful!)
It reduces to one-third of what it was.
It stays the same.
It triples.
It reduces by 7 percent.
4. At 325 K, the pressure inside a gas-filled container is 467 kPa. If the pressure inside decreases to 233 kPa, but the volume remains the same, what is the final temperature of the gas?
163 K
325 K
335 K
651 K
5. At constant volume, you cool a sealed, air-filled can, and the pressure reduces by half. Which of the following happens?
Half of the gas leaks out.
The number of collisions per unit area doubles.
The temperature of the air inside reduces by half.
The spaces between the gas molecules shrink.
THANKS!
The collisions of air molecules against the wall of the can are weaker and less frequent.
The collisions of air molecules against the wall of the can are stronger and more frequent.
The collisions of air molecules against the wall of the can do not change.
2. You have 0.5 L of air in a rigid, sealed container at a pressure of 203 kPa and a temperature of 203 K. You heat the container to 273 K. What is the final pressure of the air?
102 kPa
151 kPa
310 kPa
273 kPa
3. You fill a tank with gas at 30°C and 101.5 kPa and seal it. You decrease the temperature to 10°C but keep the volume constant. What happens to the pressure? (Careful!)
It reduces to one-third of what it was.
It stays the same.
It triples.
It reduces by 7 percent.
4. At 325 K, the pressure inside a gas-filled container is 467 kPa. If the pressure inside decreases to 233 kPa, but the volume remains the same, what is the final temperature of the gas?
163 K
325 K
335 K
651 K
5. At constant volume, you cool a sealed, air-filled can, and the pressure reduces by half. Which of the following happens?
Half of the gas leaks out.
The number of collisions per unit area doubles.
The temperature of the air inside reduces by half.
The spaces between the gas molecules shrink.
THANKS!