What volume of air will be expelled from a vessel containing `400 cm^(3)` at `7^(@)C` when it is heated to `27^(@)C` at the same pressure?

Answer

B, C

Explanation

`(V_(1))/(T_(1))=(V_(2))/(T_(2)), i.e.,(400cm^(3))/((273+7)K)" or "V_(2)=(400)/(280)xx300cm^(3)=482.6 cm^(3)`
This is the volume after expansion. `:.` Volume expelled`=(428.6-400)cm^(3)=28.6 cm^(3)`.