Which of the following would NOT be a determinant of demand?
The price of related goods
Income
Tastes
The prices of the inputs used to produce the good
Q.2.
What is the Kc expression for this reaction? 2 NO(g) + O2(g) ⇌ 2 NO2(g)
Kc = [NO2]2 / [NO]2 [O2]
Kc = [NO]2 [O2] / [NO2]2
Kc = [NO]2 [O2] [NO2]2
Kc = [NO2]2 / [NO]2 + [O2]
Q.3.
2SO2(g)+O2(g)⇌2SO3(g)Removing O2(g) will
shift equilibrium right
shift equilibrium left
increase pressure
have no change
Q.4.
A higher price for batteries would tend to
increase the demand for flashlights.
decrease the demand for electricity.
increase the demand for electricity.
increase the demand for batteries.
Q.5.
H2(g)+Cl2(g)⇌2HCl(g)Removing Cl2(g) will
shift equilibrium right
shift equilibrium left
increase pressure
have no change
Q.6.
For the reaction...H2 (g) + Cl2 (g) <=> 2HCl (g) + heatIf the pressure in the system is increased, the equilibrium position will _______.
shift to the left
shift to the right
not shift position at all as 2 mol gas <=> 2 mol gas
Q.7.
When Q is greater than KcK_cKc
the [Reactants] will increase and [Products] will decrease
the [Reactants] will decrease and [Products] will increase
the [Reactants] and [Products] will both increase
the [Reactants] and [Products] will both decrease
Q.8.
The following reaction : SO2 (g) + NO2 (g) <=> SO3 (g) + NO (g) had reached a state of equilibrium, was found to contain 0.mol L-1 SO3 , and 0.mol L-1 NO, 0.mol L-1NO2 , and 0.mol L-1 SOCalculate the equilibrium constant for this reaction.
4
.42
.25
1
Q.9.
Le Chatelier's Principle states that.... If a (dynamic) equilibrium is disturbed by changing the conditions, the position of equilibrium................
moves to increase the change
moves to counteract the change
does not change
Q.10.
Consider the following reaction: 2SO2(g) + O2(g) <=> 2SO3(g): ΔΗ = -kJ mol -1Which of the following will NOT shift the equilibrium position to the right?
Adding more O2
Adding a catalyst
increasing the pressure
Lowering the temperature
Q.11.
For the reaction...N+ O<=> 2NO: Δ H = +kJ mol-1.If the temperature is increased the equilibrium position will shift _______.
to the left
to the right
to the left and right
neither left nor right
Q.12.
For the reaction...N2 (g) + 3 H2 (g) <=> 2 NH3 (g)If the pressure in the system is increased, which substance(s) will increase in concentration?
N2 (as 2 mol gas → 4 mol gas)
H2 (as 2 mol gas → 4 mol gas)
N2 and H2 (as 2 mol gas → 4 mol gas)
NH3 (as 4 mol gas → 2 mol gas)
Q.13.
For the reaction...SO2 + O<=> SO3If the concentration of SO2 is increased, the equilibrium position of the reaction will shift ___________.
to the left
to the right
to the left and right
neither left nor right
Q.14.
For the reaction...SO2 + O2 <=> SO3If the equilibrium position shifts to the right, the concentration of O2 will ___________.
increase
decrease
remain the same
double
Q.15.
For the reaction...N+ O<=> 2NOIf O2 is removed, the concentration of N2 will _______.
increase
decrease
remain the same
double
Q.16.
If a salt solution is at equilibrium, it is
unsaturated
saturated
super-saturated
salty
Q.17.
What is equal in an equilibrium reaction?
concentrations
rates
moles
masses
Q.18.
In a system at equilibrium
the forward reaction stops
the reverse reaction stops
both reactions stop
both reactions continue at the same rate
Q.19.
If the concentration of a chemical is increased by adding more of it to a system at equilibrium, its concentration will _________________ to get the system back to equilibrium.
decrease
stay the same
increase
get completely used up
Q.20.
The units of concentration used in equilibrium constant expressions is
molality
molarity
% concentration by mass
ppm
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