Dihydrogen gas is obtained from natural gas by partial oxidation with steam as per following endothermic reaction:
'C H_4(g)+H_2 O_(g) hArr C O_(g)+3 H_2(g)'
a) Write an expression'for 'K_p' for the above reaction.
b) How will the values of 'K_p' and composition of equilibrium mixture be affected by
i) increasing the pressure
ii) increasing the temperature
iii) using a catalyst.

Given the redox reaction: CuO (s) + H_2(g)harr Cu(s) + H_2O(g) Identify the reductant and oxidant in the above reaction .

Justify the following reaction is redox reaction 4NH_3(g) + 5O_2 (g) to 4NO (g) + 6H_2O (g)

Examine the chemical equilibrium. 4NH_(3(g)) + 5O_(2(g)) harr 4NO_(g) + 6H_2O_(g) Write the expression for equilibrium constatn (K_c) for the above equilibrium.

Predict the sign of entropy change in the following reactions. i) O_2(g)+2 SO_2(g) rarr 2 SO_3(g) ii) 2 H_2(g)+O_2(g) rarr 2 H_2 O(g)

For the reaction H_2(g)+I_2(g) hArr 2 HI (g) K c=54.8 at 700 K . Calculate the value of K_p

Write an expression for equilibrium constant, Kc f or the reaction, 4NH_3(g)+5O_2(g)harr 4NO(g)+6H_2O(g)

At '473 K', equilibrium constant Kc for decomposition of phosphorus pentachloride 'PCl_5' is '8.3 xx 10^(-3) .' If decomposition is depicted as, 'PCl_5(g) hArr PCl_3(g)+Cl_2(g) , Delta, H^circ=124.0 kJmol^(-1)' a. write an expression for 'K_c' for the reaction b. what is the value of 'K_c' for the reverse reaction at the same temperature? c. what would be the effect on 'K' c if (i) more 'PCl_5' is added (ii) pressure is increased. (iii) the temperature is increased?