Indicate whether each of the following statements is true orfalse. If it is fals
ID: 682696 • Letter: I
Question
Indicate whether each of the following statements is true orfalse. If it is false, correct it.a. The feasibility of manufacturingNH3(g) from N2(g) and H2(g)depends entirely on the value of H for theprocess N2(g) + 3H2(g) ® 2 NH3(g).b. The reaction of H2(g) withCl2(g) to form HCl(g) is an example of aspontaneous process. c. A spontaneousprocess is one that occurs rapidly. d. Aprocess that is nonspontaneous in one direction is spontaneous inthe opposite direction. e. Spontaneousprocesses are those that are exothermic and that lead to a higherdegree of order in the system.Explanation / Answer
overall reaction: H2 + Cl2 --->2 HCl
initiation: Cl2 +hv ---> 2 Cl ·
propagation: Cl · + H2---> HCl + H·
H· + Cl2 ---> HCl + Cl ·
termination: 2 H·---> H2
2 Cl · ---> Cl2
H· + Cl · ---> HCl
The enthalpyfor the overall reaction is -184.6 kJ per two moles of HCl.However, the enthalpy for the initial step is 243.36 kJ per mole ofCl2. This corresponds to the energy carried by photons with awavelength of 491.5 nm This reaction is catalyzed by lighttoward the violet end of the visiblespectrum.