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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What data is required to generate a pump curve (head versus flow rate and pump efficiency versus flow rate) at different speeds ofa centrifugal pump?
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At the end of basic oxygen heat, the FeO content of the slag is approximately 20% which corresponds to a mole fraction of 0.165. Assuming that the activity coefficient of FeO in the slag is unity and that the slag and finished steel are in equilibrium at 1600oC, estimate the carbon content of the metal bath. Assume dilute solution and total pressure of 1 atm.
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almost all gases have the same RVP at
A) same temperture and pressure
B) same critical temperture and critical pressure
C) at standard temperture and pressure
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