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Questions by ElvaL9406057
0
votes
1
answer
13
views
How does the presence of a catalyst affect the rate and mechanism of a chemical reaction?
asked
3 days
ago
in
Chemical kinetics
0
votes
1
answer
4
views
What are the differences in the photochemical properties of R and S enantiomers for a specific molecule and how can this information be used in designing chiral photochemical reactions?
asked
3 days
ago
in
PhotoChemistry
0
votes
1
answer
33
views
What are the main types of liquid crystal phases and how do their properties differ from one another?
asked
Feb 13
in
Physical Chemistry
0
votes
1
answer
30
views
Which metal will displace copper from copper sulfate solution - zinc or iron? Provide the balanced chemical equation for this single replacement reaction.
asked
Feb 13
in
Chemical reactions
0
votes
1
answer
37
views
How can the mechanical properties of a polymer be improved during processing and manufacturing?
asked
Feb 10
in
Polymer Chemistry
0
votes
1
answer
40
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Design a lubricant production system that can produce 1000 liters of lubricant per hour for use in heavy machinery. The system should be cost-effective, environmentally friendly, and able to meet industry standards for quality and performance. Include a detailed process flow diagram and a list of the necessary raw materials, equipment, and safety precautions for the production process. Additionally, calculate the total production cost per liter of lubricant and propose strategies for reducing production costs without compromising product quality.
asked
Feb 4
in
Chemical engineering
0
votes
1
answer
39
views
How does changing the pH of the reaction mixture affect the equilibrium position of the reaction between a weak acid and a weak base? Provide an explanation based on Le Chatelier's principle and numerical examples for a specific acid-base reaction.
asked
Feb 3
in
Chemical equilibrium
0
votes
1
answer
45
views
What is the effect of changing the ligands on the photochemical properties of metal complexes? Provide specific examples and discuss the underlying mechanisms.
asked
Feb 3
in
PhotoChemistry
0
votes
1
answer
46
views
Calculate the amount of energy required to vaporize 100 grams of liquid water at its boiling point (100°C) given its enthalpy of vaporization is 40.7 kJ/mol.
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
23
views
What is a sememe?
asked
Jan 20
in
Psychology
0
votes
1
answer
59
views
Where did the concept of exposure therapy originate?
asked
Jan 20
in
Psychology
0
votes
1
answer
77
views
How can theories of situated cognition inform artificial intelligence?
asked
Jan 17
in
Psychology
0
votes
1
answer
43
views
How does the theory of classical conditioning help understand phobias?
asked
Jan 17
in
Psychology
0
votes
1
answer
26
views
What is the 'sleeper effect'?
asked
Jan 17
in
Psychology
0
votes
1
answer
25
views
What is validity in data measures?
asked
Jan 16
in
Psychology
0
votes
1
answer
71
views
How can spirituality and religion affect end-of-life experiences?
asked
Jan 14
in
Psychology
0
votes
1
answer
33
views
What is the difference between acute stress disorder and adjustment disorder?
asked
Jan 14
in
Psychology
0
votes
1
answer
33
views
What type of animal that eats only or mainly insects?
asked
Jan 8
in
Science
0
votes
1
answer
33
views
What term refers to any method of removing carbon dioxide from the atmosphere and storing it in another form?
asked
Jan 8
in
Science
0
votes
1
answer
16
views
What nerves attached to the brain are mainly responsible for motor and sensory functions?
asked
Jan 7
in
Science
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