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0
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What is the effect of the shape and size of metal nanoparticles on their catalytic activity in the reduction of a specific organic compound?
answered
2 days
ago
in
Materials Chemistry
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votes
27
views
What is the effect of temperature on the adsorption of gases on solid surfaces? Compare and contrast the behavior of physisorption and chemisorption with respect to temperature dependence.
answered
Feb 17
in
Surface Chemistry
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votes
32
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How can the efficiency of the Haber process be improved in the production of ammonia for use in fertilizer production?
answered
Feb 7
in
Chemical engineering
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votes
38
views
How can limited access to laboratory equipment and chemicals be overcome to encourage more hands-on experimentation in chemistry education?
answered
Feb 5
in
Chemical education
0
votes
33
views
How can chemistry curriculum and teacher training be improved to better prepare educators for teaching chemistry in a way that engages and inspires students?
answered
Feb 4
in
Chemical education
0
votes
34
views
Calculate the standard enthalpy change for the sublimation of iodine (I2) using the given information: The standard enthalpy of fusion of iodine is 15.52 kJ/mol and the standard enthalpy of vaporization of iodine is 41.57 kJ/mol.
answered
Feb 3
in
Chemical thermodynamics
0
votes
62
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Calculate the enthalpy of formation of water (H2O) given the enthalpies of formation of hydrogen gas (H2) and oxygen gas (O2) are -286 kJ/mol and 0 kJ/mol, respectively.
answered
Jan 23
in
ThermoChemistry
0
votes
55
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Calculate the corrosion current density of an iron rod having a surface area of 15 cm², immersed in an acid solution (pH=3) with a temperature of 50°C. The concentration of iron ions (Fe²⁺) in the solution is 0.1 M, and the standard reduction potential of iron is -0.44 V. The Tafel slope obtained experimentally is 0.12 V/decade. Use the Tafel equation to calculate the corrosion current density (in A/cm²) of the iron rod.
answered
Jan 23
in
ElectroChemistry
0
votes
60
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Calculate the amount of energy needed to desorb 10 moles of hydrogen gas from a metal surface, given that the enthalpy of desorption is -120 kJ/mol.
answered
Jan 23
in
ThermoChemistry
0
votes
39
views
Who proposed the gate-control theory of pain?
answered
Jan 20
in
Psychology
0
votes
70
views
How can exercise benefit recovery from mental illness?
answered
Jan 20
in
Psychology
0
votes
82
views
Please compare major depressive disorder and persistent depressive disorder.
answered
Jan 20
in
Psychology
0
votes
44
views
Please compare ego integrity versus despair in Erikson's theory versus generativity versus stagnation in Daniel Levinson's theory.
answered
Jan 17
in
Psychology
0
votes
43
views
According to the Elaboration Likelihood Model, what factors affect the amount of elaboration in the message processing?
answered
Jan 17
in
Psychology
0
votes
27
views
What is the repair attempt?
answered
Jan 16
in
Psychology
0
votes
10
views
When evaluating the reliability of a theory, what is important to consider?
answered
Jan 16
in
Psychology
0
votes
38
views
What are the limitations of the social interactionist theory in explaining language development?
answered
Jan 15
in
Psychology
0
votes
53
views
What is the psychosocial theory proposed by Erik Erikson?
answered
Jan 14
in
Psychology
0
votes
29
views
What is the impact of identity achievement on adolescent development?
answered
Jan 14
in
Psychology
0
votes
61
views
What is the difference between receptive language and expressive language?
answered
Jan 14
in
Psychology
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