UNE Chem 1011 week 5-7 review Questions With Complete Solutions
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Course
Chem 1011
Institution
University Of New England (UNE
)
For the reaction F2(g) ⇌ 2 F(g), the equilibrium constant at 223 °C is 7.3 x 10-13. If a sample of F2 is heated to 223 °C and allowed to reach equilibrium correct answer: nearly all of F2 will remain unreacted, with a very small amount of F present
At equilibrium correct answer: the rate o...
une chem 1011 week 5 7 review questions with compl
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University of New England (UNE
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Chem 1011
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UNE Chem 1011 week 5-7 review Questions
With Complete Solutions
For the reaction F2(g) ⇌ 2 F(g), the equilibrium constant at 223
°C is 7.3 x 10-13. If a sample of F2 is heated to 223 °C and
allowed to reach equilibrium correct answer: nearly all of F2
will remain unreacted, with a very small amount of F present
At equilibrium correct answer: the rate of the forward reaction
is equal to the rate of the reverse reaction and the concentration
of the reactants and products can be very different
For the reaction 2 BrCl(g) ⇌ Br2(g) + Cl2(g), the equilibrium
constant at 223 °C is 32. If a sample of BrCl is heated to 223 °C
and allowed to reach equilibrium correct answer: there will be a
significant amount of BrCl, Br2 and Cl2 present
The reaction quotient for the reaction 2 SO2(g) + O2(g) ⇌ 2
SO3(g) is correct answer:
The reaction quotient for the reaction PCl5(s) ⇌ PCl3(l) +
Cl2(g) is correct answer:
The reaction quotient for the reaction 2 H2(g) + O2(g) ⇌ 2
H2O(l) is correct answer: Qc = 1/([H2]^2[O2])
The equation relating Kc and Kp for the reaction N2(g) + 3
H2(g) ⇌ 2 NH3(g) is correct answer: Kp = Kc/(RT)2
, The equation relating Kc and Kp for the reaction 2 SO2(g) +
O2(g) ⇌ 2 SO3(g) is correct answer: Kp = Kc/(RT)
If the reaction CO2(aq) + H2O(l) ⇌ H2CO3(aq) is at
equilibrium, what effect would removing some H2CO3(aq)
have? correct answer: The equilibrium will shift right
If the reaction CO2(aq) + H2O(l) ⇌ H2CO3(aq) is at
equilibrium, what effect would removing some CO2(aq) have?
correct answer: The equilibrium will shift left
For the exothermic reaction 2 O3 ⇌ 3 O2, what effect would
increasing the temperature have? correct answer: The
equilibrium will shift left, and the equilibrium constant will
change
A Brønstead-Lowry acid correct answer: donates a proton to
another compound
A Brønstead-Lowry base correct answer: accepts a proton from
another compound
In the dissolution of methylamine in water, CH3NH2 + H2O ⇌
CH3NH3+ + OH- correct answer: H2O is the base acid OH- is
the conjugate base
In in the dissolution of acetic acid in water, CH3COOH + H2O
⇌ H3O+ + CH3COO- correct answer: H2O is the base and
H3O+ is the conjugate acid
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