Gas law's Practice

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

What is 50 C in Kelvin?

• 223

• 323

• 100

• 50

The volume of a gas at 25^ο C is 3.8 L.  What will be the volume of that gas at 57 ^ο C if the pressure is held constant?

• 8.66 L

• 4.21 L

• 6.34 L

• 3.46 L

A gas with a volume of 400 mL at 120 ^οC is heated until its volume is 700 mL.  What is the new temperature ( in degree Celsius) of the gas if the pressure is constant?

• 4 14.75 ^οC

• 687.75 ^οC

• 210 ^οC

• 68.57 ^οC

Molar volume of any gas at STP

• 22.4 L

• 2.24 L

• 6.02 x 10²³ L

• 224 L

If 3.25 mol of Ar occupies 100. L at a particular temp and pressure, what volume does 14.15 mol of Ar occupy under same condition?

• 435 L

• 225 L

• 100 L

• 522 L

A 2.00 L sample of pure oxygen gas (O₂) is measured at STP.  How many moles of oxygen is this?

• 24.4 mol

• 0.007 mol

• 1.44 mol

• 0.09 mol