Define reaction rate. Distinguish between the initial rate,
average rate, and instantaneous rate of a chemical reaction. which
of these rates is usually fastest? The initial rate is the rate
used by convention. Give a possible explanation as to why?
(I have defined all rates. I am mainly stumped on which rate is the
fastest and why initial rate is used by convention)
Find the rate law expression and the rate law constant for the
reaction whose data is in the table below.
Trial
[X]
[Y]
Rate
1
2.0
2.0
2.5 x 10—6
2
2.0
6.0
2.25 x 10—5
3
4.0
2.0
2.0 x 10—5
b. Calculate the rate of the reaction described in part a) when
[X] = 0.25 mol/L and [Y] = 6.0 mol/L.
Can you explain the difference between the rate of a reaction, the reaction rate, and the rate law? Also is there a difference between average rate of concentration change and instantaneous rate of concentration change, and how do they relate to the rate law? Please explain!
1. What is the overall reaction order for the reaction that has
the rate law: Rate = k[H2] [NO]2 ?
a. zero
order
b. first
order
c. second
order
d. third
order
2. The first-order decomposition of hydrogen peroxide occurs
according to the equation
2 H2O2(aq) ? 2 H2O(l) +
O2(g)
Using data from a concentration-time study of this reaction,
which plot will produce a straight line?
a.
1/[H2O2] versus time
b.
ln[H2O2] versus time
c.
[H2O2]2 versus time
d. ...
Derive an expression for the instantaneous voltage across the
capacitor. Express your answer in terms of the variables C, R, I0,
and t.
My previous answers that were incorrect: 1) VC=I0*Cos(omega*t)*R
(Response was that the answer doesn't depend on (omega*t)
2)Vc=I0*Cos((1/RC)*t)*R (Response was Incorrect; Try Again; One
attempt remaining You have found the voltage across the resistor.
Note that the current and voltage across the capacitor are out of
phase.)
Previous question info:
Part A) A 300 Ω resistor is...
A. If the rate law for the reaction
2A + 3B products
is first order in A and second order in B, then what is the rate
law?
B. A reaction was found to be third order in A. If the
concentration of A is increased by a factor of 3, Then how much the
reaction rate will be affected?
C. The overall order of a reaction is 2. What will be the unit
of the rate constant? Show calculation....
Differentiate between good faith and commercial reasonableness.
Discuss the need for such terms in law.
What are prepayment and acceleration clauses? How do these
clauses help the borrower?
#9 Writing and Interpreting a Rate Law Expression
1. The gas phase reaction of nitric oxide and oxygen yields
nitrogen dioxide:
2 NO (g) + O2 (g) ----> 2
NO2 (g)
The rate law is rate = k[NO]2[O2].
a. What is the reaction order with respect to each reactant and
what is the overall reaction order?
b. What are the units for k if time was expressed in units of
minutes?
c. If the concentration of NO was doubled and...