An open vessel contains 200 mg of air at 17°C. What weight percentage

1.	An open vessel contains 200 mg of air at 17°C. What weight percentage of air would be expelled if the vessel is heated to 117°C?
Answer» Suppose vol. of 200mg of air at 17°C =V mL Apply Charle‘s Law V₁/ T₁=V₂/ T₂ V₁/ 290 = V₂/390 V₂ =1.34 V₁ , volume of air expelled = 1.34 V₁ –V₁ =o.34 V₁ mL % of air expelled: 0.34 V₁x 100 /V₁ = 34%

An open vessel contains 200 mg of air at 17°C. What weight percentage of air would be expelled if the vessel is heated to 117°C?

Answer»

Suppose vol. of 200mg of air at 17°C =V mL

Apply Charle‘s Law V₁/ T₁=V₂/ T₂

V₁/ 290 = V₂/390

V₂ =1.34 V₁ ,

volume of air expelled = 1.34 V₁ –V₁ =o.34 V₁ mL

% of air expelled: 0.34 V₁x 100 /V₁ = 34%