Gas Laws Chemistry Example 1

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Example 1

easy
A gas occupies 2.0 L2.0\,\text{L} at 1.0 atm1.0\,\text{atm}. What is its volume at 3.0 atm3.0\,\text{atm} (constant temperature)?

Solution

  1. 1
    Use Boyle's Law: P1V1=P2V2P_1V_1 = P_2V_2.
  2. 2
    1.0×2.0=3.0×V21.0 \times 2.0 = 3.0 \times V_2.
  3. 3
    V2=2.03.0=0.67 LV_2 = \frac{2.0}{3.0} = 0.67\,\text{L}.

Answer

V2=0.67 LV_2 = 0.67\,\text{L}
Boyle's Law states that pressure and volume are inversely proportional at constant temperature. Tripling the pressure reduces the volume to one-third.

About Gas Laws

A set of mathematical relationships that describe how the pressure, volume, temperature, and amount (moles) of a gas are interconnected.

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Use the ideal gas law to find the volume occupied by [formula] mol of gas at [formula] and [formula]

Example 3 easy

A gas at [formula] occupies [formula]. What volume does it occupy at [formula] (constant pressure)?

Example 4 medium

A gas occupies [formula] L at [formula] atm. If the pressure increases to [formula] atm at constant

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