Question

Assuming all volumes measured at the same temperature and pressure, state the volume ratio of the reactants and products when ethane burning in oxygen to give carbon dioxide and steam.

• A. 2 : 7 : 4 : 6
  
• B. 2 : 7 : 4 : 4
• C. 1 : 7 : 4 : 6
• D. 3 : 7 : 4 : 6

Answer 1

The correct option is A 2 : 7 : 4 : 6

$C_2{H}_6+\frac{7}{2}{O}_2\to 2C{O}_2+3H_{2}O$

$2C_2{H}_6+7O_2\to 4C{O}_2+6H_{2}O$

Stoichiometric coeff of $C_2{H}_6,O_2,C{O}_2,H_{2}O$ are in

Ratio of $2:7:4:6$

So, volume Ratio is $2:7:4:6$.