NEW
Font size
WorksheetsCB Paul Quiz Trial 1
Total questions: 21
Worksheet time: 1hrs 5mins
The following data were measured for the reaction
BF3(g) + NH3(g) ⟶ F3BNH3(g)
What is the rate law for the reaction?
rate = k[NH3]
rate = k[BF3]2[NH3]
rate = k[BF3][NH3]
rate = k[BF3][NH3]2
What is the rate law for this mechanism?
rate = k[A][B]2
rate = [B][X]
rate = [A]0.5[B]1.5
rate = [W][Y][Z]
Given the following rate law,
rate = k[A]2[B]
if [A] were doubled, what must happen to [B] to keep the rate constant?
[B] must quadruple
[B] must double
[B] must be havled
[B] must be quartered
Which of the two graphs show a state of equilibrium being reached?
A
B
A and B
Neither.
The iodide ion reacts with hypochlorite ion in the following way:
OCl- + I- ⟶ OI- + Cl-.
This rapid reaction gives the rate data shown. What is the rate law?
rate = [OCl-]2[I-]
rate = [OCl-][I-]2
rate = [OCl-][I-]
rate = [OCl-]
There are 45 applicants for three Computer Programmer job positions.
Einstein is contemplating the equation for the principle that
mass always travels at the speed of light in a vacuum
the energy of a photon is proportional to its frequency
the fundamental source of all energy is the conversion of mass into energy
energy is emitted or absorbed in discrete packets called photons
The energy produced by the complete conversion of 2.0 × 10-5 kilogram of mass into energy is
1.8 X10^12 J
9 X10 ^16 J
2.25 X 10^16 J
1.37 X 10^14 J
What percentage of Rubidium-87 will remain after 4 half-lives?
25%
12.5%
6.25%
3.125%
How long will it take for a 28-gram sample of radon-222 to decay to 3.5 grams? the half-life of radon-222 of 3.82 days
15.28 days
11.46 days
3 days
4 days
In the equation, 146C --> 147N + 0-1B, the _______ decay of radioactive carbon-14 results in the creation of a new nitrogen-14 atom.
Gamma
Beta
Alpha
Gamma rays have
no mass
a huge mass
a small mass
an average mass
Carbon dating is used to determine the age of a fossil. Less than 4% of the original amount of carbon-14 is left. How many half-lives would have passed?
less than 1
more than 2
about 5
exactly 4
Faraday’s Law states that
the magnitude of induced e.m.f is inversely proportional to the the rate of cutting of the magnetic field
the magnitude of induced e.m.f is directly proportional to the the rate of cutting of the magnetic field
the direction of induced e.m.f is inversely proportional to the the rate of cutting of the magnetic field
the direction of induced e.m.f is directly proportional to the the rate of cutting of the magnetic field
Which action will increase the deflection of the galvanometer pointer?
The magnetic pole is reversed
The number of turns of coils is increased
The coil is made from insulated wire
The magnet is slowly pushed into the coil
