SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
Environmental Engineering
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 40 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Groups linked by straight or branched carbon chains
the dipole moment
aliphatics
1 mole
what the lower heating value is based on
2. H=U+PV; H2-H1=change in H=Q
standard enthalpy
the equation depicting the relationship between the energy contained in 1 photon and the wavelength and frequency associated with the photon produced is...
enthalpy of a system
the presence of carbon in a substance indicates that is it _____________ - except for _____________.
3. Organic matter - silt - clay - sand
a single photon must have sufficient energy to cause photolysis all by itself
aromatic isomers (ortho vs. meta vs. para)
four components of sand
Hydrophobic
4. 6.02x10^23 molecules
1 mole
Moles
molarity
# of specific synthetic chemicals used daily and why it's potentially an issue
5. Circle (hexagonal if we'z gon get technical hurr) alkenes with double bonds at every other joint.
The change in enthalpy in the reaction
aromatics
0 - 1 - 22.4 L - 6.02x10^23 molecules
Isotopes
6. 1 mole of a substance dissolved into enough water to make the mixture have a volume of 1 L.
finding the heat of reaction: the process
A 1 molar solution
aromatic isomers (ortho vs. meta vs. para)
Aromaticity
7. Photochemical reaction; photochemical dissociation; or simply photolysis
aliphatics
moles
the equation depicting the relationship between the energy contained in 1 photon and the wavelength and frequency associated with the photon produced is...
when a molecule is dissociated by absorbing a photon of energy
8. The flow of electrons goes to...
The molecules that really want them (most electronegative)
graphine is a 1 dimensional sheet of _________; whereas ___________ is layers of graphine.
enthalpy of a system
the dipole moment
9. The mass of the atom measured in atomic mass units (1 proton=1 amu)
the atomic weight of an atom
equation for the maximum wavelength for a photon that has enough energy for photolysis
molecular weight of a molecule
a single photon must have sufficient energy to cause photolysis all by itself
10. Molecules cannot store up energy from a series of photon encounters (waiting until enough energy is accumulated to cause photolysis...
the presence of carbon in a substance indicates that is it _____________ - except for _____________.
Aromaticity
a single photon must have sufficient energy to cause photolysis all by itself
Absorbed; endothermic
11. Natural waste
what the lower heating value is based on
the dipole moment
the goal of water treatment is to remove _________________
enthalpy of a system
12. At standard STP (corresponding to __ degrees celsius and __ atm) - 1 mole of an ideal gas occupies ___ L and contains ___ molecules.
Absorbed; endothermic
what the higher heating value includes
0 - 1 - 22.4 L - 6.02x10^23 molecules
alkenes are saturated/unsaturated aliphatics
13. Number of protons in the nucleus
atomic number
the dipole moment
when a molecule is dissociated by absorbing a photon of energy
alkanes consist of...
14. E=hv=(hc)/wavelength where: E=energy of a photon (J) h=planck's constant (6.6x10^-34 Js) v=frequency (hertz - ie. cycles per second) c=speed of light (3.0x10^8 m/s) gamma=wavelength (m)
the equation depicting the relationship between the energy contained in 1 photon and the wavelength and frequency associated with the photon produced is...
graphine is a 1 dimensional sheet of _________; whereas ___________ is layers of graphine.
what the lower heating value is based on
# of specific synthetic chemicals used daily and why it's potentially an issue
15. The heat of reaction when water is assumed to remain in a vapor state; also called the net heat of combustion
atomic number
aliphatics
what the lower heating value is based on
the equation depicting the relationship between the energy contained in 1 photon and the wavelength and frequency associated with the photon produced is...
16. When change in H (enthalpy) is positive - heat is _____________ and the reaction is said to be _____________
Absorbed; endothermic
Moles
standard enthalpy
moles
17. Ring structures: - enes (double bonds); - anes (single bonds)
alkenes are saturated/unsaturated aliphatics
Isotopes
the goal of water treatment is to remove _________________
cycloalkenes
18. Energy/mole
The change in enthalpy in the reaction
standard enthalpy
finding the heat of reaction: the process
aromatic isomers (ortho vs. meta vs. para)
19. Unsaturated - has double bonds!
alkenes are saturated/unsaturated aliphatics
moles
graphine is a 1 dimensional sheet of _________; whereas ___________ is layers of graphine.
the equation depicting the relationship between the energy contained in 1 photon and the wavelength and frequency associated with the photon produced is...
20. The number of moles of substance per liter of solution
a single photon must have sufficient energy to cause photolysis all by itself
The molecules that really want them (most electronegative)
equation for the maximum wavelength for a photon that has enough energy for photolysis
molarity
21. The more molecules of benzene - the more hydrophilic/hydrophobic the compound
Hydrophobic
moles
The molecules that really want them (most electronegative)
aliphatics
22. Change in enthalpy (H2-H1); the sum of the enthalpies of the reaction products minus the sum of the enthalpies of the reactants
the heat of reaction
aromatics
Moles
# of specific synthetic chemicals used daily and why it's potentially an issue
23. Benzene; graphite
1 mole
aliphatics
the dipole moment
graphine is a 1 dimensional sheet of _________; whereas ___________ is layers of graphine.
24. The sum of the atomic weight of all the constituent atoms
bulk pollutants are primarily ______________
enthalpy of a system
the equation depicting the relationship between the energy contained in 1 photon and the wavelength and frequency associated with the photon produced is...
molecular weight of a molecule
25. First balance the chemical reaction - then for each species multiply the number of moles by the standard enthalpy to find total enthalpy
what the higher heating value includes
A 1 molar solution
what the lower heating value is based on
finding the heat of reaction: the process
26. Vector sum of all bond dipoles in a structure
the dipole moment
the equation depicting the relationship between the energy contained in 1 photon and the wavelength and frequency associated with the photon produced is...
organic molecule partitioning
# of specific synthetic chemicals used daily and why it's potentially an issue
27. The process of going from one phase to another
aromatic isomers (ortho vs. meta vs. para)
organic molecule partitioning
Aromaticity
finding the heat of reaction: the process
28. All single bonds
# of specific synthetic chemicals used daily and why it's potentially an issue
what the higher heating value includes
standard enthalpy
alkanes consist of...
29. Ortho: side by side - meta: one point away - forms an M - para: opposite each other
aromatics
alkenes are saturated/unsaturated aliphatics
the heat of reaction
aromatic isomers (ortho vs. meta vs. para)
30. Electrons are free to cycle around arrangements of atoms which are alternatively single- and double- bonded to one another. These bonds may be seen as a hybrid of a single bond and a double bond - each bond in the ring identical to every other
Aromaticity
the presence of carbon in a substance indicates that is it _____________ - except for _____________.
finding the heat of reaction: the process
1 mole
31. >100 -000; there is no natural decay cycle for them
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
32. Inorganic
bulk pollutants are primarily ______________
when a molecule is dissociated by absorbing a photon of energy
molecular weight of a molecule
the atomic weight of an atom
33. Mass (g)/molecular weight
moles
the atomic weight of an atom
Aromaticity
The molecules that really want them (most electronegative)
34. 1 atm and 298 K (kj/mol)
when a molecule is dissociated by absorbing a photon of energy
the presence of carbon in a substance indicates that is it _____________ - except for _____________.
standard enthalpy(pressure and temp)
the goal of water treatment is to remove _________________
35. The heat released when water condenses to liquid form - also known as the gross heat of combustion
bulk pollutants are primarily ______________
what the higher heating value includes
when a molecule is dissociated by absorbing a photon of energy
what the lower heating value is based on
36. Organic - carbonates (they're inorganic)
four components of sand
the presence of carbon in a substance indicates that is it _____________ - except for _____________.
alkanes consist of...
what the lower heating value is based on
37. Wavelength </= hc/E
0 - 1 - 22.4 L - 6.02x10^23 molecules
organic molecule partitioning
alkanes consist of...
equation for the maximum wavelength for a photon that has enough energy for photolysis
38. For a photon to be able to cause photolysis - it must have at least as much energy as...
The change in enthalpy in the reaction
Absorbed; endothermic
the presence of carbon in a substance indicates that is it _____________ - except for _____________.
a single photon must have sufficient energy to cause photolysis all by itself
39. If we divide the mass of a substance by its molecular weight - the result is the mass expressed in ________.
Moles
The molecules that really want them (most electronegative)
standard enthalpy
enthalpy of a system
40. Atoms containing the same number of protons but differing amounts of neutrons are __________ of each other
Isotopes
aliphatics
Absorbed; endothermic
cycloalkenes