Question

A volume of 1 ml of a gaseous aliphatic mixture compound cnh3nom is completely burnt in an excess of oxygen the contraction in volume is

Answer 1

Answer:The gaseous aliphatic organic compound = CnH3nOm

Volume= 1 mL

The balanced reaction for the combustion is,

CxHyOz + (x+y/4-z/2)O2 → xCO2 + y/2H2O

Here, x=n, y=3n, z=m

Hence, the balanced reaction for the combustion of given organic compound will be,

CnH3nOm + (n+3n/4-m/2)O2 → nCO2 + 3n/2 H2O

At RT, the volume of H2O is ognored as it becomes liquid,

Hence, contraction in volume = 1 + n + 3n/4 - m/2 - n = 1+ 3n/4 - m/2