The decomposition of sodium hydrogen carbonate is
endothermic.
2 NaHCO3(s) ⇌
Na2CO3(s) +
CO2(g) + H2O(g)
The reaction takes place in a closed container and is allowed to
come to an equilibrium.
Which of the following reaction conditions will
not decrease the concentration of water vapor?
There may be more than one correct answer so check each answer
that is correct.
_Decrease the volume of the container.
_Add CO2.
_Cool the container.
_Remove some NaHCO3.
The dissociation in water of calcium hydroxide is exothermic and
can be written as follows-
Ca(OH)2(s) ⇌
Ca2+(aq) + 2 OH-(aq)
What do you expect to happen when an equilibrium mixture of the
above is heated?
Group of answer choices
The amount (not the concentration) of Ca(OH)2 remains
unchanged.
The amount (not the concentration) of Ca(OH)2 will
increase.
The Ca(OH)2 will dissolve.
The amount (not the concentration) of Ca(OH)2 will
decrease.
For the following chemical reaction-
4 HCl(g) +
O2(g) ⇌
2 Cl2(g) + 2
H2O(g)
the equilibrium constant, Kc , is 0.063 at 400
K. If the reaction quotient, Q, is 0.100, what will happen to each
of the chemical species as everything moves to equilibrium?
The concentration of HCl(g)
will
The concentration of O2(g) will
The concentration of Cl2(g) will
The concentration of H2O(g) will