Question

10 litres of nitrogen gas and 10 litres of hydrogen gas are introduced into an evacuated flask of 10 litres capacity. it is then heated to 700k and 3 atm pressure. find the volume of ammonia ( at NTP) produced?

Answer 1

N2        +            3H2        ------->       2NH3 Acording to Gay-Luccac's formula of mixing gases, 10 ltrs of nitrogen combines with 30 ltrs of hydrogen and forms 20 ltrs of ammonia. In the above question, we have only 10 ltrs hydrogen, so, only part of nitrogen will react. Since, 3 volume of hydrogen produces 2 volumes of ammoniaTherefore, 10 ltr hydrogen produces  = 2/3   x 10 = 6.6 ltrs ammonia.