Question 1: Select the correct equilibrium constant expression for the general reaction represenataion about A + B ⇋ C + D

K=[A][B]/[C][D]
K=[A][B][C][D]
K=[C][D]/ [A][B]
K=[C][D] [A][B]

Question 2: Write the equilibrium constant expression for the reaction H2(g) + I2(g) ⇋ 2HI(g)

[HI(g)]2 eq [H2(g)]eq [I2(g)]eq
[HI(g)]2 eq / [H2(g)]eq/ [I2(g)]eq
[HI(g)]2 eq / [H2(g)]eq [I2(g)]eq
[HI(g)] eq / [H2(g)]eq [I2(g)]eq

Question 3: Equilibrium constant for the reverse reaction is the ----------of the equilibrium constant for the reaction in the forward direction

Same
Inverse
Ten times
None of these

Question 4: What is the equilibrium constant expression for the formation of ammonia reaction?

K=[NH3]/[N2][H2]3
K=[NH3]/[N2][H2]3
K=[NH3]/[N2][H2]
K=[NH3]2/[N2][H2]3

Question 5: PCl5, PCl3 and Cl2 are at equilibrium at 500 K and having concentration 1.59M PCl3, 1.59M Cl2 and 1.41 M PCl5. Calculate Kc for the reaction

2.79
3.56
1.79
2.48