Question

#1: At 300 K, the pressure inside a gas-filled container is 500 kPa. If the pressure inside decreases to 100kPa, but the volume remains the same, what is the final temperature?
A. 30 K

B. 60 K

C. 180 K

D. 240 K

**my answer; B. 60K

not too sure tho.. is that right?

Answer 1

#2: You pull up on the piston of a pump, and the volume decreases by half. Which of the following happens?

A. The temperature inside the chamber is reduced by one-half.

B. The number of collisions per unit area doubles.

C. The number of collisions per unit area is reduced by one-half.

D. The temperature inside the piston triples.

**my answer: C

is that right??

Answer 2

***sorry, i meant A... the temperature... for #2

Answer 3

#3: You have 2.0 L of air at 273 K. When the balloon is heated to 323 K, what is the volume?

A. 2.4 L

B. 4.0 L

C. 2.0 L

D. 1.0 L

**idk :( what do u think?

Answer 4

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

A. 0.1 L

B. 0.2 L

C. 0.5 L

D. 510 L

**my answer: C. 0.5 L

is that right?

Answer 5

1, correct
2, no idea
3, you have to use Charles' law again. determine V1, T1, V2, T2, and which one of them is the unknown.

Answer 6

#5: A 1.0 L balloon has a temperature of 10°C. When the temperature increases to 298 K at constant pressure, what is the volume?

A. 30.0 L

B. 0.5 L

C. 1.05 L

D. 29.8 L

**my answer: C

is that right?

Answer 7

okay, for 3, so i do this? so answer A? A. 2.4 L ??? is that right?? for #3?