Which species are arranged in order of increasing entropy?
C2H6 (g) > C2H5OH (l) > Hg (l) > Mg (s)
C2H5OH (l) > C2H6 (g) > Hg (l) > Mg (s)
Mg (s) > C2H5OH (l) > Hg (l) > C2H6 (g)
Mg (s) > Hg (l) > C2H5OH (l) > C2H6 (g)
Did this page help you?
Which species are arranged in order of increasing entropy?
C2H6 (g) > C2H5OH (l) > Hg (l) > Mg (s)
C2H5OH (l) > C2H6 (g) > Hg (l) > Mg (s)
Mg (s) > C2H5OH (l) > Hg (l) > C2H6 (g)
Mg (s) > Hg (l) > C2H5OH (l) > C2H6 (g)
Did this page help you?
4HCl (g) + O2 (g) 2Cl2 (g) + 2H2O (g)
Hydrogen chloride undergoes a reversible reaction to form chlorine as shown above.
| HCl (g) | O2 (g) | Cl2 (g) | H2O (g) |
---|---|---|---|---|
S/ J K–1 mol–1 | 187 | 205 | 223 | 189 |
Using the information above, calculate the standard entropy change, ΔS, for this reaction.
–129 J K–1 mol–1
+129 J K–1 mol–1
-20 J K–1 mol–1
+20 J K–1 mol–1
Did this page help you?
Which of the following reactions would show an increase in entropy?
(Assume all reactants and products are in their standard state).
I. The reaction between zinc and nitric acid
II. The thermal decomposition of calcium carbonate
III. The complete combustion of methane
I only
I and II only
I and III only
I, II and III
Did this page help you?