JEE Main202310 Apr 2023Morning ShiftChemistryHydrogenActual
Given below are two reactions, involved in the commercial production of dihydrogen H 2 . The two reactions are carried out at temperature “ T 1 ” and “ T 2 ”, respectively C s + H 2 O g ⟶ T 1 CO g + H 2 g CO g + H 2 O g T 2 Catalyst CO 2 g + H 2 g The temperatures T 1 and T 2 are correctly related as
Options
- AT 1 = T 2
- BT 1 < T 2
- CT 1 = 100   K ,   T 2 = 1270   K
- DT 1 > T 2
Correct answer
D. T 1 > T 2
Step-by-step solution
C s + H 2 O g ⟶ 1270   K   T 1 CO g + H 2 g is known as coal gasification reaction. The mixture produced in this reaction is called water gas. CO g + H 2 O g 673   K   T 2 Catalyst → CO 2 g + H 2 g is known as water gas shift reaction. Using water gas shift reaction we can increase the concentration of hydrogen gas. Hence, T 1 > T 2