`1 m^3` of `C_2H_4` at STP is burnt in oxygen, according to the thermochemical reaction `C_2H_4(g) + 3ZO_2(g) rarr 2CO_2(g) + 2HO_2(l)`, `DeltaH = -1410 kJ//mol` Assuming 70% efficiency, determine how much of useful heat is evolved in the reaction.

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

Assign the order of the following reaction. H_(2(g)+CI_(2(g) overset (rarr)(hv)2HCI_(g) .

An experimental data is given, N_2(g) + 3H_2(g) rarr 2NH_3(g) , Delta H = -91.8 kJ//mol Give the significance of -ve sign of DeltaH .

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)

Consider this reaction: CO(g)+2H_2(g) harr CH_3 OH(g), Delta rH =- 92kJ/Mol Explain the influence of the following on the basis of Le Chateliers principle. Increase in the pressure

For the reaction: 2AZ_(g) + B_(g) rarr 2D_(g) DeltaU^@ = -10.5 kJ//mol DeltaS^@ = -44.1 kJ//mol at 298 K. Calculate DeltaG^@ for the reaction.

The heat evolved in the combustion of benzene is given by. the equation: 'C_6 H_6(g)+(15)/2 O_2(g) rarr 6 CO_2^(g)+3 H_2 O(l), Delta H=-3264.6 kJ mol^(-1)' The heat energy change when '39 g' of 'C_6 H_6' are burnt in an open container will be:

Complete the following reactions C_3H_8(g)+3H_2O(g) undersetrarr(Delta)oversetrarrcatalyst

In Haber's process, ammonia is manufactured according to the following reaction N_(2(g)) + 3H_(2(g)) hArr 2NH_(3(g)) , Delta H^(@) = -2.4 kJ The pressure inside the chamber is maintained at 200 atm and temperature at 500^(@)C . Generally this reaction is carried out in presence of Fe catalyst. The preparation of ammonia by Haber's process is an exothermic reaction. If the preparation follows the following temperature pressure relationship for its % yield. Then for temperature T_(1), T_(2) and T_(3) , the correct option is :