2. What is the effect on the equilibrium concentration of each substance in the system (increase, decrease or no change) when the listed reagents are added?
a) H2(g) is added to the system described by:
C2H6(g) = H2(g) + C2H4(g)
b) Heat is added t to the system described by:
CO(g) + ½ O2(g) = CO2(g) + heat
c) CuSO4(g) is added to the system described by:
CU2+ (aq) + 4NH3(aq) = Cu (NH3)32+ (aq)
d) Pb (NO3)2(s) is added to the system described by:
Pb (NO3)4(s) + H+ (aq) = PB2+ (aq) + HSO4-(aq)
e) AgCL(s) is added to the system described by:
Ag+ (ag) + Cl- (ag) = AgCL(s)
a) Adding H2(g) to the system will increase the concentration of H2(g) and decrease the concentration of C2H6(g) and C2H4(g).
b) Adding heat to the system will not change the equilibrium concentrations of any of the substances in the system.
c) Adding CuSO4(g) to the system will increase the concentration of Cu2+ (aq) and decrease the concentration of NH3(aq) and Cu(NH3)32+ (aq).
d) Adding Pb (NO3)2(s) to the system will not change the equilibrium concentrations of any of the substances in the system.
e) Adding AgCl(s) to the system will not change the equilibrium concentrations of any of the substances in the system.
are you sure this answer is correct?
Apologies for the confusion. Here are the correct answers:
a) Adding H2(g) to the system will shift the equilibrium towards the right, increasing the concentration of C2H4(g) and decreasing the concentration of C2H6(g).
b) Adding heat to the system will shift the equilibrium towards the right, increasing the concentration of CO2(g) and decreasing the concentration of CO(g) and O2(g).
c) Adding CuSO4(g) will not have any effect on the equilibrium concentrations as it is a solid and not a reactant or product in the equation.
d) Adding Pb(NO3)2(s) will not have any effect on the equilibrium concentrations as it is a solid and not a reactant or product in the equation.
e) Adding AgCl(s) will not have any effect on the equilibrium concentrations as it is a solid and not a reactant or product in the equation.
are these answer final and correct?
Apologies for the confusion. Here are the correct and final answers:
a) Adding H2(g) to the system will not change the equilibrium concentrations of any of the substances in the system.
b) Adding heat to the system will shift the equilibrium towards the right, increasing the concentration of CO2(g) and decreasing the concentration of CO(g) and O2(g).
c) Adding CuSO4(g) will not have any effect on the equilibrium concentrations as it is a solid and not a reactant or product in the equation.
d) Adding Pb(NO3)2 will not change the equilibrium concentrations of any of the substances in the system.
e) Adding AgCl(s) will not have any effect on the equilibrium concentrations as it is a solid and not a reactant or product in the equation.
a) When H2(g) is added to the system described by C2H6(g) = H2(g) + C2H4(g), the equilibrium concentration of H2 will increase, as it is being added to the system. The concentration of C2H6 will decrease, as it is being consumed to produce H2. The concentration of C2H4 will not change, as it is not directly affected by the addition of H2.
b) When heat is added to the system described by CO(g) + ½ O2(g) = CO2(g) + heat, the equilibrium concentration of CO2 will increase, as heat is a product of the reaction and the system will shift in the forward direction to favor the formation of CO2. The concentrations of CO and O2 will decrease, as they are being consumed to produce CO2.
c) When CuSO4(g) is added to the system described by CU2+(aq) + 4NH3(aq) = Cu(NH3)32+(aq), the equilibrium concentration of Cu(NH3)32+ will increase, as CuSO4 provides additional Cu2+ ions which combine with NH3 to form Cu(NH3)32+. The concentrations of Cu2+ and NH3 will decrease, as they are being consumed to form Cu(NH3)32+.
d) When Pb(NO3)2(s) is added to the system described by Pb(NO3)4(s) + H+(aq) = PB2+(aq) + HSO4-(aq), the equilibrium concentration of PB2+ will increase, as Pb(NO3)2 provides additional PB2+ ions which combine with H+ to form PB2+. The concentration of HSO4- will decrease, as it is being consumed to form PB2+. The concentration of H+ will not change, as it is not directly affected by the addition of Pb(NO3)2.
e) When AgCl(s) is added to the system described by Ag+(aq) + Cl-(aq) = AgCl(s), the equilibrium concentration of AgCl will increase, as AgCl is being added to the system. The concentration of Ag+ and Cl- will not change, as they are not directly affected by the addition of AgCl.