question_answer 1)

  Which of the following reactions increases production of dihydrogen from synthesis gas? (a) \[C{{H}_{2}}(g)+{{H}_{2}}O(g)\xrightarrow[Ni]{127K}CO(g)+3{{H}_{2}}(g)\]   (b) \[C(s)+{{H}_{2}}O(g)\xrightarrow{1270K}CO(g)+{{H}_{2}}(g)\] (c) \[CO(g)+{{H}_{2}}O(g)\xrightarrow[catayst]{673K}C{{O}_{2}}(g)+{{H}_{2}}(g)\]            (d) \[{{C}_{2}}{{H}_{6}}+2{{H}_{2}}O\xrightarrow[Ni]{1270K}2CO+5{{H}_{2}}\]

Answer:

  (c) Production of hydrogen increases by water gas shift reaction. \[CO(g)+{{H}_{2}}O(g)\xrightarrow[catayst]{673\,K}C{{O}_{2}}(g)+{{H}_{2}}(g)\]