Question

Write balanced chemical equations with physical state symbols and necessary conditions, if any:(a) Nitrogen reacts with hydrogen in the presence of iron as a catalyst at 200 atmospheric pressure and 600°C temperature, and the product obtained is ammonia.(b) Aqueous solution of sodium hydroxide reacts with hydrochloric acid and produces sodium chloride and water.(c) Phosphorus burns in chlorine gas to form phosphorous pentachloride.

Answer 1

Answer:

a.

Fe, 200 atm

N2 + 3H2 ---------------> 2NH3

873k

b.

NaOH (aq) + HCl-------->NaCl + H2O

c.

P4 + 10Cl2 -------> 4PCl5

Answer 2

Answer:

                                (fe,600°C, 200 atm)  

a) N2(g) + 3H2(g)               ⇌                      2NH3(g).      H= -92KJ/mol                              

This is called Haber's process. It is used to manufacture ammonia in industries.

Ammonia is mainly used in the manufacture of plastics, explosives, dyes and other products. It is also used to purify water supplies.

(b) HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)

Sodium chloride is one of the most common salt. It is used to soften hard water. It is also used to manufacture chemical compounds like sodium carbonate and calcium chloride.

(c) P4(s) + 10Cl2(g) → 4PCl5(s)

Phosphorus pentachloride is used to manufacture pesticides, water purifying chemicals, and other chemicals.