1. For the reaction 2A(g)⇌B(g)+2C(g), a reaction vessel initially contains only A at a pressure of PA=265 mmHg. At equilibrium, PA=41 mmHg.
Calculate the value of Kp. (Assume no changes in volume or temperature.)
2. consider the following reaction:
A(g)⇌2B(g)
Find the equilibrium partial pressures of A and B for each of the following different values of Kp. Assume that the initial partial pressure of B in each case is 1.0 atm and that the initial partial pressure of A is 0.0 atm. Make any appropriate simplifying assumptions.
Kp= 2.0
PA, PB =
3. Consider the following reaction:
HC2H3O2(aq)+H2O(l)⇌H3O+(aq)+C2H3O−2(aq)
Kc=1.8×10−5 at 25∘C
If a solution initially contains 0.190 M HC2H3O2, what is the equilibrium concentration of H3O+ at 25∘C?
4. Consider the following reaction:
Fe3+(aq)+SCN−(aq)⇌FeSCN2+(aq)
A solution is made containing an initial [Fe3+] of
1.2×10−3 M and an initial [SCN−] of 7.9×10−4
M. At equilibrium, [FeSCN2+]= 1.7×10−4 M .
Calculate the value of the equilibrium constant (Kc).
5.Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride, CF4 via the reaction
2COF2(g)⇌CO2(g)+CF4(g), Kc=4.00
If only COF2 is present initially at a concentration of 2.00 M, what concentration of COF2 remains at equilibrium?
6.Consider the reaction
CO(g)+NH3(g)⇌HCONH2(g), Kc=0.890
If a reaction vessel initially contains only CO and NH3 at concentrations of 1.00 M and 2.00 M, respectively, what will the concentration of HCONH2 be at equilibrium?
1. Let us use the ICE table to calculate equilibrium pressure
| 2A | B | 2C | |
| Initial | 265 | 0 | 0 |
| Change | -2x | +x | +2x |
| Equilibrium | 265-2x | x | 2x |
Given that the equilibrium pressure of A = 41mmHg
265 - 2x = 41
x = 112
At equilibrium, p(A) = 41 mmHg
p(B) = x = 112 mmHg
p(C) = 2x = 224 mmHg
Kp = p(B)*p(C)^2/p(A)^2 = 112*224*224/41*41 = 3.343*10^3
1. For the reaction 2A(g)⇌B(g)+2C(g), a reaction vessel initially contains only A at a pressure of...
For the reaction 2A(g)⇌B(g)+2C(g), a reaction vessel initially contains only A at a pressure of PA=255 mmHg . At equilibrium, PA=56 mmHg . Calculate the value of Kp. (Assume no changes in volume or temperature.)
The following reaction was carried out in a 3.75 L reaction vessel at 1100 K: C(s)+H2O(g)⇌CO(g)+H2(g) If during the course of the reaction, the vessel is found to contain 8.50 mol of C, 12.7 mol of H2O, 4.00 mol of CO, and 6.20 mol of H2, what is the reaction quotient Q? Enter the reaction quotient numerically. Q = Consider the reaction CO(g)+NH3(g)⇌HCONH2(g), Kc=0.810 If a reaction vessel initially contains only CO and NH3 at concentrations of 1.00 M and 2.00...
A. Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride, CF4 via the reaction 2COF2(g)⇌CO2(g)+CF4(g), Kc=7.80 If only COF2 is present initially at a concentration of 2.00 M, what concentration of COF2 remains at equilibrium? B. Consider the reaction CO(g)+NH3(g)⇌HCONH2(g), Kc=0.820 If a reaction vessel initially contains only CO and NH3 at concentrations of 1.00 M and 2.00 M, respectively, what will the concentration of...
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For the reaction, A(g) 2 B(g), a reaction vessel initially contains only A at a pressure of PA = 1.32 atm. At equilibrium, PA = 0.25 atm. Calculate the value of Kp. Assume no changes in volume or temperature.
Part A Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride, CF4 via the reaction 2COF2(g)?CO2(g)+CF4(g), Kc=4.20 If only COF2 is present initially at a concentration of 2.00 M, what concentration of COF2 remains at equilibrium? Express your answer with the appropriate units. [COF2] = Part B Consider the reaction CO(g)+NH3(g)?HCONH2(g), Kc=0.820 If a reaction vessel initially contains only CO and NH3 at concentrations of 1.00...
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1A) A mixture initially contains A, B, and C in the following concentrations: [A] = 0.300 M , [B] = 1.15 M , and [C] = 0.400 M . The following reaction occurs and equilibrium is established: A+2B⇌C At equilibrium, [A] = 0.190 M and [C] = 0.510 M . Calculate the value of the equilibrium constant, Kc. 1B) Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make...