Please show why the answers are Both A for 3. and 4. please 3. The energy produc

Question

Please show why the answers are Both A for 3. and 4. please

3. The energy produced in nuclear fission bombs is mainly the result of the (A) disappearance of an equivalent amount of mass. (B) energy produced by a chemical reaction. (C) energy of combustion of the atoms subdivided. (D) energy of the neutrons that are sent in all directions (E) energy of the gamma rays 4. The reaction for the formation of ammonia by direct combination is 92 kJ 2NH3 N2 3H2 which operation will increase the yield of ammonia in the equilibrium mixture? (A) doubling the concentration of hydrogen (B) reducing the total pressure (C) raising the temperature D) increasing the reaction time (E) adding a catalyst I n c tn hnr hean Etudied at five widely different temperatures and the

Explanation / Answer

3. In all type of nuclear bomb the Mass-Energy equivalence theorem as proposed by Einstein is employed. In case of nuclear fission reaction there is a mass difference between the masses of the fused nucleus and the new nuclei generated. This difference in mass is converted to energy according to the following equation:

     E = mc2. Where c is the velocity of light.

So, the correct option is (A).

4. Increasing the concentration of the reactant increases the concentration of any product formed in a chemical reaction.

    As volume is quenched in this reaction reducing the total pressure will favour the backward reaction. For an exothermic reaction raising temperature would neither help.

So, the correct option is (A).

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