Question

Question 1.26 If ten volumes of dihydrogen gas react with five volumes of dioxygen gas, how many volumes of water vapour would be produced?

Answer 1

Use simple unitary method dear, 2 H2 + O2 -----> 2 H2O, 2 vol. of H2 needs 1 vol. of O2 to give 2 vol. of H2O , similarly 10 vol h2 reacts with 5 vol O2 and give 10 Vol of H2O