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3-The rate of disappearance of HCl was measured for the
following reaction:
CH3OH + HCl → CH3Cl + H2O
The initial concentration of HCl
is 2.61 M. Its concentration decreases
to 2.01 M
in 74.2 min. What is the rate of
reaction?
-----M/min
5-
If a certain reaction takes 16 h to
go to completion at 10°C, what temperature should we run it if we
want it to go to completion in 1 h?
----- °C
10-
The following reaction was allowed to reach equilibrium at 25°C.
Equilibrium concentration is given for each component. Calculate
the equilibrium constant, K, for this reaction.
2NOCl(g) 2NO(g) +
Cl2(g)
[NOCl] = 4.2 M; [NO]
= 1.6 M; [Cl2]
= 0.68 M.
The equilibrium constant, K, is .
17-In the reaction between H2 and
Cl2 to give HCl, a 10 °C increase in temperature
doubles the rate of reaction. If the rate of reaction at 15 °C is
2.80 M HCl/sec, what will the rate be
at -5 °C?
-------M HCl/sec
18-For the reaction
2NOBr(g) 2NO(g) +
Br2(g)
the rate of the reaction was -0.50 mol
NOBr/L/h when the initial NOBr concentration
was 6.6 mol NOBr/L. What is the rate
constant of the reaction?
k = -------- /h
19-
The equilibrium constant for the following reaction at a
particular temperature is 22.7.
2 NOBr(g) 2 NO(g) +
Br2(g)
A measurement was made on the equilibrium mixture that the
concentrations of NO and Br2 were
both 0.453 M. What is the concentration
of NOBr at equilibrium?
[NOBr] = --------M
20-
References
Chapter 7: EOC
Question Content Area
In the reaction,

N2O4(g) 2
NO2(g)

the concentration of N2O4 was measured
as a function of time with the following results,
What is the initial rate of reaction?
--------M N2O4/s