Recent activity by MaureenIllin

1 answer 23 views

How can the properties of polymer-based composites be enhanced for better performance in aerospace applications, such as increased strength and heat resistance?

asked 1 day ago in Polymer Chemistry

1 answer 33 views

Calculate the standard enthalpy change of reduction for the reaction: Fe2O3(s) + 3H2(g) -> 2Fe(s) + 3H2O(l) Given: Standard enthalpy of formation (ΔHf°) of Fe2O3(s) = -822 kJ/mol Standard enthalpy of formation (ΔHf°) of H2O(l) = -286 kJ/mol Standard enthalpy of fusion (ΔHfus) of Fe(s) = 13.81 kJ/mol Standard enthalpy of vaporization (ΔHvap) of H2(g) = 0.449 kJ/mol Standard enthalpy of formation (ΔHf°) of H2(g) = 0 kJ/mol

asked Feb 3 in ThermoChemistry

1 answer 69 views

A chemistry student needs to determine the equilibrium constant (Kc) for the reaction: N2(g) + 3H2(g) ⇌ 2NH3(g)At a certain temperature, 0.2 mole of nitrogen gas (N2), 0.3 mole of hydrogen gas (H2), and 0.4 mole of ammonia gas (NH3) were placed in a 1 L container. Using these initial concentrations, what is the equilibrium constant (Kc) for the reaction?

answered Jan 22 in Chemical equilibrium

1 answer 25 views

What are the limitations of informational social influence?

answered Jan 16 in Psychology

1 answer 8 views

According to the ecological systems theory, what are the different systems that influence adolescent development?

asked Jan 15 in Psychology

1 answer 36 views

What is the relationship between depression and physical activity?

asked Jan 14 in Psychology

1 answer 29 views

What is social influence?

answered Jan 14 in Psychology

1 answer 27 views

What is cultural competence in psychology?

asked Jan 14 in Psychology

1 answer 21 views

What type of vertebrates are birds?

answered Jan 8 in Science

1 answer 27 views

What is the term for an antibody that inappropriately marks self-components as foreign?

asked Jan 7 in Science

1 answer 54 views

What broad group of living things serves as the major producers in terrestrial biomes?

asked Jan 6 in Science

1 answer 13 views

More than half of all known organisms are what?

answered Dec 31, 2024 in Science

1 answer 35 views

Atomic emission spectra are produced when excited electrons return to what state?

answered Dec 30, 2024 in Science

1 answer 13 views

The volume of blood each ventricle pumps per minute is called what?

answered Dec 27, 2024 in Science

1 answer 12 views

The differing glycosidic linkages in starch and cellulose give the two molecules what kind of distinct shapes?

asked Dec 27, 2024 in Science

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