Chemistry Questions?

1. You have a 2.0 L balloon filled with air at a tmeperature of 273 K. When the volume of the balloon increases to 2.4 L, what is the new temperature?

A. 240 K

B. 323 K

C. 655 K

D. 900 K

2. A 1.0 L balloon has a pressure of 2 atm. When the pressure increases to 400 kPa, what is the volume?

A. 0.5 L

B. 510 L

C. 0.1 L

D. 0.2 L

3. A 2.0 L balloon has a temperature of 10°C. When the temperature increases to 298K at constant pressure, what is the volume?

A. 1.05 L

B. 2.11 L

C. 0.5 L

D. 0.3 L

4. At 300 K, the pressure inside a gas-filled container is 500 kPa. If the pressure inside decreases to 100 kPa, but the volume remains the same, what is the final temperature of the gas?

A. 240 K

B. 30 K

C. 60 K

D. 180 K

1 Answer

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  • 3 years ago
    Favorite Answer

    1.

    (273 K) x (2.4 L / 2.0 L) = 328 K

    So answer B.

    2.

    (1.0 L) x (2 atm x (101 kPa/atm)) / 400 kPa = 0.5 L

    So answer A.

    3.

    (2.0 L) x (298 K / (10 + 273) K) = 2.11 L

    So answer B.

    4.

    (300 K) x (100 kPa / 500 kPa) = 60 K

    So answer C.

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