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Sulphur dioxide react with oxygen at `450^@C` in the presence of a catalyst `(V_2O_5)` to form sulphur trioxide. The reaction is reversible and 182 KJ of energy is liberated.

Write complete balanced equation for the following reaction : sulphur dioxide + oxygen → sulphur trioxide

Write a balanced chemical equation for each of the following reactions and also classify them . Hydrogen sulphide gas reacts with oxygen gas to form solids sulphur and liquid water .

According to collision theory, rate of the reaction effects by which of the following: 1. reacting molecules must react in the presence of catalyst. 2. molecules must have energy equal to or high E_a 3. molecules must have effective collisions due to proper orientation. 4. none of these.

Fuel cells convert the energy produced during the combustion of fuels cells directly into electrical energy. Probably the most successful fuel cell so far is hydrogen oxygen fuel cell, which has ben used in spacecraft. The electrodes consist of porous screens of titanium coated with a layer of platinum catalyst. concentrated KOH or NaOH soloution is placed beween the electrodes to serve the as electrolyte. hydrogen and oxygen gases are bubbled through the porous electrodes into the electrolyte solution The following electrodes reactions occur: At anode: 2H_2(g)+4OH^(-)(aq)rarr4H_2O(l)+4bare At cathode: O_2(g)+2H_2O(l)+4barerarr4Oh^-(aq) Overall reaction: 2H_2(g)+O_2(g)rarr2H_2O(l) In this cell, the gaseous materials are consumed and continously supplied. The thermodynamic properties of fuel cell reaction at 25^@C are: DeltaH^@=-285.8kJ mol^-1,DeltaG^@=-237.2kJ mol^-1, E^@=1.23V If the potential of the half cell reaction is at cathode is, E^@=0.41V , then E^@ for the half cell reaction at anode is

At 380^@C , the half-life period for the first order decomposition of H_2O_2 is 360 min. the energy of activation of the reaction is 200 kJ mol^(-1) Calculate the time required for 75% decomposition at 450^@C .

Two electrolytic cells containing silver nitrate solution and dilute sulphuric acid solution were connected in series. A steady current of 2.5 amp was passed through them till 1.078 g of silver was deposited? [Ag=107.8g mol^-1, 1f=96500C] What was the weight of oxygen gas liberated?

Ozone in the upper atmoshphere absorbs ultraviolet radiation which induces the following chemical reaction O_(3)(g)rightarrowO_(2)(g)+O(g) O_(2) produced in the above photochemical dissociation undergoes further dissociation into one normal oxygen atom (O) and more energetic oxygen atom O** . O_(2)(g) rightarrowO+O** (O**) has 1 eV more energy than(O) and normal dissociation energy of O_(2) is 480 kJ "mol"^(-1) . [1 eV/Photon =96 kJ "mol"^(-1) ] If dissociation of O_(3) into O_(2) and O requires 400kJ mol^(-1) and O_(2) produced in this reaction is further dissociated to O and O** then the total energy required to for the dissociation of O_(3) into O and O** is :

Ozone in the upper atmoshphere absorbs ultraviolet radiation which induces the following chemical reaction O_(3)(g)rightarrowO_(2)(g)+O(g) O_(2) produced in the above photochemical dissociation undergoes further dissociation into one normal oxygen atom (O) and more energetic oxygen atom O** . O_(2)(g) rightarrowO+O** (O**) has 1 eV more energy than(O) and normal dissociation energy of O_(2) is 480 kJ "mol"^(-1) . [1 eV/Photon =96 kJ "mol"^(-1) ] What is the maximum wavelength effective for the photochemical dissociation of O_(2) molecule