AP Chemistry 3rd 9 Weeks Test

IF we are using Boyles' law and our Pressure goes UP, what must our volume do?

• Go UP

• Go DOWN

• Stay the same

• Wrong law.

What is the formula for Boyle's Law?

• P₁V₁=P₂V₂
• P₁V₁/P₂V₂
• P₁V₂=P₂V₁
• P₁/V₁=P₂/V₂

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

What is the formula Charles' Law?

• V = T
• VT = VT
• T₁ / V_{1 =} T₂ / V₂
• V₁ / T₁ = V₂ / T₂

If a beach ball has a volume of 261 L at a temperature of 502 K, what will be the new temperature of the balloon if the volume decreases to 176 L?

• 744 K

• 0.0030 K

• 339 K

• 512 K

The pressure remains constant over a sample of neon gas occupying a volume of 255 mL . The volume is now 323mL because the temperature has increased to 369 K. What is the original temperature of the gas?

• 291 K

• 223 K

• 467 K

• 76 K

A sample of argon gas is at a temperature of 20 °C. The temperature is increased to 30°C so that the volume is now 373 mL. What was the original volume?

• 338 mL

• 411 mL

• 254 mL

• 249 mL

A gas has a pressure of 2 atm at 400K. If the temperature changes to 200K, what is the new pressure be?

• 0.5atm
• 1.0atm
• 2.5atm
• 3.0atm

A gas has a pressure of 1.5 atm at 100K. If the pressure changes to 6 atm, what is the new temperature be?

• 200K
• 250K
• 400K
• 600K