An open vessel contains 200 mg of air at 170 C.What weight percentag

1.	An open vessel contains 200 mg of air at 170 C.What weight percentage of air would be expelled if the vessel is heated to 1170 C?
Answer» Suppose vol. of 200 mg of air at 17⁰ C =V mL Apply Charle’s Law V₁/ T₁=V₂/ T₂ V₁/ 290 = V₂/390 V₂ =1.34 V₁ , volume of air expelled = 1.34V₁ –V₁ =o.34V₁ mL % of air expelled: 0.34V₁x 100 /V₁ _{= 34%}

An open vessel contains 200 mg of air at 170 C.What weight percentage of air would be expelled if the vessel is heated to 1170 C?

Answer»

Suppose vol. of 200 mg of air at 17⁰ C =V mL

Apply Charle’s Law V₁/ T₁=V₂/ T₂

V₁/ 290 = V₂/390

V₂ =1.34

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

% of air expelled: 0.34V₁x 100 /V₁

_{= 34%}