An explosion is possible in a chain reaction when
| A. |
the reaction includes a chain branching step |
|
| B. |
a termination step is the fastest step |
|
| C. |
the reaction has a positive free energy change |
|
| D. |
the reaction is endothermic |
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Can anyone tell me about the measurement of ICP-AES?
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How serious is the current threat of nuclear weapons being acquired and used in a terrorist attack and why? Please write your response in at least 350 words.
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Lowest heat transfer coeffient is for ?
A) Boiling
B) Free Convection
C) Forced Convection
D) Condensation
And why ? and what is the second lowest
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Name the following complexes (Coordination Chemistry):
PtCl42-,
Hg(CN)42-,
Ni(NH3)62+,
Fe(PO4)23-,
Co(NH3)5(H2O)3+,
CaHCO3+
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In Energy Dispersive Spectroscopy (EDS). Describe the difference between K, L, and M radiation using an energy level diagram.
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What are the safety aspects of materials involved in the production of ethylene oxide, as well as the product materials (toxicity, PEL values, TLVs, upper and lower flammability limits)?
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What does it mean for example: 100% of methane and oxygen entering are consumed by reactions 1 and 2..
Or another example... 95% of hydrogen entering is consumed...
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cavitation is caused by ?
A) High pressure
B) High viscosity
C) high what ???
what is the purpose of prime pumping ?
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calculate the reactions conversion percent (by hand and solver in excel) to be able to find good result in aspen in producing Ethylene oxide. The given reactions are:
C2H4+ 0.5O2 --> C2H4O
C2H4+ 3O2 --> 2CO2+2H2O
C2H4O + 2.5O2 --> 2CO2+2H2O
Along with stream data (COMPONENT FLOWRATES (Kmol/h) related to first and second reactors as followed:
First reactor input
Ethylene --> 1047.91
Ethylene oxide --> 6.47
Carbon dioxide--> 31.71
Oxygen --> 6331.12
Nitrogen --> 28,191.39
Water --> 30.98
First reactor output:
Ethylene --> 838.67
Ethylene oxide --> 206.79
Carbon dioxide --> 49.56
Oxygen --> 6204.19
Nitrogen --> 28,191.39
Water --> 48.82
Second reactor output:
Ethylene --> 670.64
Ethylene oxide --> 175.83
Carbon dioxide --> 63.44
Oxygen --> 6101.72
Nitrogen --> 28,188.72
Water --> 77.13
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What is the difference between an Environmental Assessment (EA) and Environmental Impact Statement?
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