chem gas laws

Question

What is the final volume of 195 mL of oxygen gas at 14.0 deg C if the gas is heated to 211 deg C? Assume the pressure and the amount of gas are held constant. How do I work this out?

Answer 1

Assuming ideal gas behavior,

 

P₁V₁/T₁ = P₂V₂/T₂

 

P₁ = P₂ = constant ⇒

 

V₁/T₁ = V₂/T₂

 

You have V₁, T₁, and T₂, so you can easily solve for V₂.  Be sure to work the problem using absolute temperatures (kelvin scale).

 

K = °C + 273