Question

Sample Examination II t a system at equlibriurm aecording to the equation 159 s added to such an equilibrium system at constant volume and temperatare, the total pressure ses and the number of NHs molecules present increases (B) decreases and the number of NHa molecules present Increases remains the same and the rumber of Nils molecules present increases remains the same and the number of NHs molecules present decreases E) increases and the number of NiHs molecules present remains the sare a correct comparison of the characteristics of a catalyzed reaction to the Which is Wsponding characteristics of the same reaction without a catalyst present I. Their energies of activation are the same. II. Their enthalpies of reaction are the same. III. Their free energies of reaction are the same. 61 (A) I only (B) II only (C) II and III only (D) I and III only (E) I, II, and III . 62. Consider a system at equilibrium based on the equation 2100s) +Cl2(g) 근 2NOCI(g) Which is a correct statement about this equilibrium system? I. The concentration of NOCI is constant. The rate of loss of Cla is equal to the rate of formation of NOCI. II. III. The rate of formation of NO is equal to the rate of los of NOCI. (A) I only (B) III only (C) I and III only (D) II and III only (E) I, II, and III

Answer 1

(60)

Since to form NH3 N2 is also required .

so on adding H2 only increase the pressure

Hence answer is (E)

(61) Catalyst decreases the activation energy of the reaction but free energy and enthalpy remains the same

Ans (C)

(62)

At equilibrium option 1 and 3rd are correct.

Answer : (C)