Indicate whether each of the following statements is true orfalse. If it is false, correct it. (a) The feasibility of manufacturingNH3 from N2 and H2 depends entirely on the valueof ΔH for the process N2(g) + 3 H2(g)----->2 NH3(g).(b) The reaction of Na(s) with Cl2(g) to form NaCl(s) is aspontaneous process. (c) A spontaneous process can in principlebe conducted reversibly. (d) Spontaneous processes ingeneral require that work be done to force them to proceed.(e) Spontaneous processes are those that are exothermicand that lead to a higher degree of order in the system.
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
Indicate whether each of the following statements is true or
false. If it is false, correct it. (a) The feasibility of manufacturing
NH3 from N2 and H2 depends entirely on the value
of ΔH for the process N2(g) + 3 H2(g)----->2 NH3(g).
(b) The reaction of Na(s) with Cl2(g) to form NaCl(s) is a
spontaneous process. (c) A spontaneous process can in principle
be conducted reversibly. (d) Spontaneous processes in
general require that work be done to force them to proceed.
(e) Spontaneous processes are those that are exothermic
and that lead to a higher degree of order in the system.
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