Recent activity by OpalVoyles75

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Calculate the standard enthalpy change for the phase transition reaction of solid calcium carbonate (CaCO3) to gaseous carbon dioxide (CO2) at 298 K, given the following formation enthalpies: ΔHf°(CaCO3) = -1206.9 kJ/mol ΔHf°(CO2) = -393.5 kJ/mol Also, assume that the specific heat capacity of CaCO3 is 0.82 J/g·K and that of CO2 is 0.85 J/g·K.

asked Feb 3 in Chemical thermodynamics

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How does adding more reactant or product affect the equilibrium position of a chemical reaction? Explain using Le Chatelier's principle with at least three different examples.

asked Jan 30 in Chemical equilibrium

1 answer 8 views

When considering the attachment theory, who is the primary attachment figure?

answered Jan 20 in Psychology

1 answer 8 views

How does the halo effect relate to the design of human-machine interfaces?

asked Jan 20 in Psychology

1 answer 41 views

According to the ecological systems theory, what are the levels of influence on human development?

answered Jan 20 in Psychology

1 answer 41 views

Who developed the social identity theory?

asked Jan 17 in Psychology

1 answer 21 views

Where might an educational psychologist look for the cause of learning disabilities?

asked Jan 17 in Psychology

1 answer 33 views

According to the psychodynamic model, what is the cause of anxiety disorders?

asked Jan 16 in Psychology

1 answer 23 views

When evaluating cognitive theories, what is the role of replication?

answered Jan 16 in Psychology

1 answer 31 views

What is the difference between egoism and existentialism?

answered Jan 15 in Psychology

1 answer 22 views

What are some factors that influence sexual desire?

asked Jan 14 in Psychology

1 answer 35 views

What can we do to promote ethical behaviour?

answered Jan 14 in Psychology

1 answer 63 views

The number of moles of solute in 1 kg of solvent is defined as what?

asked Jan 2 in Science

1 answer 75 views

The normal respiratory rate per minute in adult humans is?

answered Jan 2 in Science

1 answer 13 views

Diamond, graphite and fullerene are examples of what form of carbon?

answered Dec 30, 2024 in Science

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