A generic reaction takes place inside of an 5 L balloon at 1 atm and 293 K (i.e the pressure and temperature is constant). What is the final volume of the balloon if the reaction taking place is: 2 A + 2 B --- 3 C

Question

A generic reaction takes place inside of an 5 L balloon at 1 atm and 293 K (i.e the pressure and temperature is constant).  What is the final volume of the balloon if the reaction taking place is:   2 A  +  2 B   --->  3 C

aaronq · Answer

since moles are proportional to value (assuming ideal behaviour), the volume decreased by 1/4 (4 moles of gas on the reactants side 3 moles on the product side).

so find what 1/4 if 5 L is and subtract that from 5L