Recent activity by LavonFriedma

1 answer 25 views

How can the excessive use of chemical fertilizers and pesticides in agriculture affect the soil quality and overall environmental health in the long term, and what sustainable alternatives can be proposed to promote sustainable agriculture and minimize its impact on the environment?

asked 3 days ago in Environmental Chemistry

1 answer 32 views

Design a chemical reactor system with a specific volume and flow rate for the production of 100 kg/hr of ammonia from hydrogen and nitrogen gases using the Haber-Bosch process. The reactor temperature should be maintained at 450°C and a pressure of 200 atm. The reactor should also have a 90% conversion rate of reactants to meet the required production rate. Determine the dimensions of the reactor and the amount of catalyst needed for this process.

answered Feb 3 in Chemical engineering

1 answer 37 views

Calculate the standard entropy change for the reaction: 2SO3(g) + O2(g) → 2SO4(g) Given the following standard entropies of formation: ΔS°f SO3(g) = 256.2 J/K mol ΔS°f O2(g) = 205.0 J/K mol ΔS°f SO4(g) = 296.8 J/K mol

asked Feb 3 in Inorganic Chemistry

1 answer 8 views

What is action research?

answered Jan 17 in Psychology

1 answer 27 views

What is a covert observation?

asked Jan 16 in Psychology

1 answer 33 views

What is the psychoanalytic theory of personality?

asked Jan 13 in Psychology

1 answer 39 views

What is the second stage of photosynthesis?

answered Jan 7 in Science

1 answer 8 views

What is the process by which almost all plants make food?

answered Jan 7 in Science

1 answer 33 views

Thylakoid membranes contain molecules of what green pigment used in photosynthesis?

answered Jan 2 in Science

1 answer 11 views

The small, egg-shaped organs that lie on either side of the uterus are called?

answered Jan 2 in Science

1 answer 33 views

How many different kinds of ions are produced when sodium chloride dissociates ?

answered Dec 30, 2024 in Science

1 answer 36 views

Energy is absorbed as reactants are converted to products in what kind of chemical reaction?

answered Dec 30, 2024 in Science

1 answer 27 views

What is the scientific term for the amount of light reflected by a surface?

asked Dec 30, 2024 in Science

1 answer 52 views

What kind of phenotype results in a case of incomplete dominance?

answered Dec 27, 2024 in Science

1 answer 12 views

Potassium, calcium, and magnesium are considered what kind of nutrients?

asked Dec 27, 2024 in Science

1 answer 36 views

An example of hydrolysis working within our bodies is the process of what?

answered Dec 27, 2024 in Science

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