Part b: Consider the reaction system: H, (g) + Br2 (g)2 HBr (g) -23.7 kcal Predi
ID: 695435 • Letter: P
Question
Part b: Consider the reaction system: H, (g) + Br2 (g)2 HBr (g) -23.7 kcal Predict whether the equilibrium will shift left or right if the following changes are made. a. H2 (g) is removed from the system: b. The temperature is raised: C. The system is compressed to ½ the original volume: (circle one) left no shiftright left no shift right left no shift right Part C: Consider the reaction system: CH, (g) + 2 H2S (g) CS2 (g) + 4 H2 (g) -+139.6 kcal Predict whether the equilibrium will shift left or right if the following changes are made. H2 (g) is removed: b. The temperature is raised: C. The system is compressed to ½ the original volume: (circle one) left no shiftright left no shift right left no shift right a.Explanation / Answer
part b
according to lechatliers principle,when a system at equilibrium,undergoes stress,the equilibrium shift in such a way that, in order to undo the stress.
a. left (H2 removed, so that products converts into reactant)
b. left (DH= - ve for forward reaction,DH= +ve for backward reaction. increase in T , backward reaction favourable.)
c. no shift (Dn = 0 , no effect of volume of equilibrium)
part C
according to lechatliers principle,when a system at equilibrium,undergoes stress,the equilibrium shift in such a way that, in order to undo the stress.
a. Right (H2 removed, so that reactants converts into products)
b. Right (DH= + ve for forward reaction,DH= -ve for backward reaction. increase in T , forward reaction favourable.)
c. Right ( decreasing volume,shift equilibrium from more no of mole side to less)