Ethyne or acetylene can be hydrogenated to change from the triple bonded C2H2 to the double-bonded C2H4. Adding hydrogens in org
anic chemistry is called reduction. Adding and removing hydrogens are important steps in chemical manufacturing. Calculate the value of ΔS° for the catalytic hydrogenation of acetylene to ethene,
C2H2 (g) + H2 (g) --> C2H4 (g)
A. +18.6 J/mol K
B. -18.6 J/mol K
C. -112.0 J/mol K
D. +112.0 J/mol K
C2H2 (g) + H2 (g) --> C2H4 (g)
A. +18.6 J/mol K
B. -18.6 J/mol K
C. -112.0 J/mol K
D. +112.0 J/mol K
1 answer:
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Answer:
Pb(s), Fe(s) and Zn(s) will reduce to
Fe(s) and Zn(s) will reduce to
Explanation:
Standard reduction potential denotes ability to consume electrons from another species.
Hence, higher the standard reduction potential, higher will be the ability to oxidize another species.
Metal with value lower than 1.51 V will donate electron to
and thus reduces
to
.
So, Pb(s), Fe(s) and Zn(s) will reduce to
.
Metal with value lower than -0.40 V will donate electron to
and thus reduces
to
.
So, Fe(s) and Zn(s) will reduce to
.