Methanol, CH_3OH, can be synthesized by combining carbon monoxide an hydrogen. C
ID: 516567 • Letter: M
Question
Methanol, CH_3OH, can be synthesized by combining carbon monoxide an hydrogen. CO(g) + 2H_2(g) CH_3OH(g) Delta H degree_rxn = -90.7 kJ A reaction vessel contains these compounds at equilibrium. What effect will be seen when equilibrium is re established after decreasing the temperature by 45 degree C? All the partial pressure will decrease. The partial pressure of methanol will decrease. The partial pressure of hydrogen and methanol will decrease. The partial pressure of hydrogen will increase. The partial pressure of carbon monoxide will decrease. The Haber process for the production of ammonia relies on a heterogeneous catalyst. How does the use of this catalyst effect the yield of the reaction at equilibrium? N_2(g) + 3H_2(g) 2NH_3(g) Delta H degree = -92.2 kJ yield is increased yield is decreased depends on the catalyst used doesn't effect yield can't be determined.Explanation / Answer
7)
Forward reaction is exothermic in nature
we are decreasing temperature or removing heat here
so, according to Le Chatellier's principle,
equilibrium will move in direction which release heat
hence, forward reaction will be favoured
Pressure of products will increase and that of reactants will decrease
Answer: The partial pressure of carbon monoxide will decrease
8)
catalyst helps the reaction to reach equilibrium faster but it do not effect the states of equilibrium. The yield is not effected by the catalyst
Answer: doesn’t effect yield