Recent activity by SteveSantiag

1 answer 15 views

How can the magnetic properties of different materials be investigated and optimized for use in data storage devices?

asked 3 days ago in Materials Chemistry

1 answer 27 views

How can students effectively learn and understand concepts of chemistry that require the use of laboratory equipment and facilities when they have limited access to them?

asked 5 days ago in Chemical education

1 answer 28 views

How can chemistry students in developing countries access adequate learning resources and textbooks, despite the limited availability of such materials in their communities?

asked 6 days ago in Chemical education

1 answer 34 views

Calculate the standard enthalpy change for the reaction 2 SO2(g) + O2(g) → 2 SO3(g), given the following standard enthalpy of formation: ΔHf° (SO2) = -296.8 kJ/mol, ΔHf° (SO3) = -396.2 kJ/mol.

answered Feb 3 in Chemical thermodynamics

1 answer 54 views

A chemical mixture containing 30% ethanol and 70% water needs to be separated using a distillation column. The feed rate is 1000 kg/hr and the desired purity for both products is 99%. The distillation column has 20 theoretical trays, and the reflux ratio is 2.5. Determine the number of trays required to achieve the desired purity for both products.

asked Jan 22 in Chemical engineering

1 answer 25 views

When evaluating the effectiveness of CBT, what research methods are typically used?

answered Jan 20 in Psychology

1 answer 5 views

According to the trichromatic theory, how many types of color receptors are there in the retina?

asked Jan 17 in Psychology

1 answer 23 views

What are the strengths of positivism?

asked Jan 16 in Psychology

1 answer 56 views

What is the strengths of the integrative approach?

asked Jan 16 in Psychology

1 answer 17 views

What is the role of the patient in CBT?

answered Jan 16 in Psychology

1 answer 45 views

How does the biopsychosocial model explain illness?

asked Jan 15 in Psychology

1 answer 28 views

What are some common comorbidities associated with OCD?

asked Jan 14 in Psychology

1 answer 9 views

What is the significance of identity diffusion in adolescent development?

asked Jan 14 in Psychology

1 answer 16 views

What is the connection between sleep and mental health?

answered Jan 14 in Psychology

1 answer 11 views

What is self-actualisation?

answered Jan 10 in Psychology

1 answer 23 views

Which law explains why a ship weighing thousands of metric tons floats on water?

answered Jan 8 in Science

1 answer 10 views

What term is used to describe an illusion that light from faraway objects is reflected by a pool of water that is not really there?

asked Jan 7 in Science

1 answer 12 views

The urethra transports urine from what organ to the outside of the body for disposal?

answered Jan 2 in Science

1 answer 66 views

Ocean acidification results from the ocean absorbing what gas from the atmosphere?

answered Dec 31, 2024 in Science

1 answer 37 views

What happens when water is removed from the endospore?

answered Dec 27, 2024 in Science

...