Given that ΔGo for a reaction is 4.00 kJ mol-1, what is the
value of Keq at 25oC (i.e., 77oF)? The value of R is 0.008314
kJ/mol K or 0.001986 kcal/mol K. Report your answer to three
significant digits.
For the reaction of dissolution of lithium sulfate in water the
equilibrium constant is positive (K > 1).
Li2SO4(s) ⇌ 2
Li+(aq) +
SO4-2(aq)
ΔrHo = -30.5 kJ/mol
Which of the following statements is correct?
A. You can dissolve a larger amount of lithium sulfate in hot
water than in cold water.
B. The entropy of the system increases when lithium sulfate
dissolves in water.
C. The reaction as written is not spontaneous at standard
conditions.
D. Dissolution of lithium...
The ΔGo of a reaction: (more than one answer
may be correct)
A)
will change if the temperature of the reaction is changed.
B)
can predict whether a reaction will be thermodynamically
favorable under standard conditions.
C)
will change if the concentration of reactants and products are
changed.
D)
can be used to help calculate whether a reaction is
thermodynamically favorable under defined non-standard
conditions.
E) is not related to the
equilibrium constant.
1.Suppose n and k are two positive integers. Pick a uniformly
random lattice path from (0, 0) to (n, k). What is the probability
that the first step is ‘up’?
For the two reactions a) A→B ΔGo′ = 2 kJmol-1 and b) X→Y ΔGo′ =
–3.5 kJmol-1, which of the following statements is correct?
-Reaction a is not spontaneous at cellular concentrations
-Reaction a is a more thermodynamically favorable reaction than
b
-Neither reaction is reversible
-None of the answers given is correct
1. Determine ΔGo for the following reaction:
2 Na(s) + 2 H2O(l) --> H2(g) + 2
OH-(aq) + 2 Na+(aq)
2. Calculate K for the oxidation of iron by H+:
2 Fe(s) + 6 H+(aq) --> 2 Fe3+(aq) + 3
H2(g)
If p is any positive number between 0 and 1, then p4 + C(4,3)
p3(1–p) + C(4,2) p2(1–p)2 + C(4,1) p (1–p)3 + (1–p)4 = 1. Explain
why without performing any calculation.
Please explain the concept behind this to me, and not just the
chain of calculations or mathematical proofs.
Calculate ΔGo at 25oC for the reaction H2 + I2 D 2HI.
Starting with 1.0 atm H2 and 1.0 atm I2, What is ΔG when: 0.1%, 1%,
10%, 50%, 90%, 99%, and 99.9% has reacted.
Calculate ΔGo at 25oC for the reaction H2 + I2 D 2HI. Starting
with 1.0 atm H2 and 1.0 atm I2, What is ΔG when: 0.1%, 1%, 10%,
50%, 90%, 99%, and 99.9% has reacted.