Recent activity by JeannetteBru

1 answer 43 views

Calculate the Gibbs free energy change (ΔG) for the following chemical reaction at 25°C and constant pressure of 1 atm:2H2(g) + O2(g) → 2H2O(l)Given the following standard Gibbs free energy of formation values (ΔfG°) at 25°C:H2(g) = 0 kJ/molO2(g) = 0 kJ/molH2O(l) = -237 kJ/mol

answered Jan 23 in Chemical thermodynamics

1 answer 52 views

Calculate the bond order of the nitrogen molecule (N2) using molecular orbital theory.

answered Jan 23 in Physical Chemistry

1 answer 88 views

A chemistry student needs to calculate the standard enthalpy change for the combustion reaction of methane (CH4) to produce carbon dioxide (CO2) and water (H2O) at 298 K. The student is given the following information: CH4(g) + 2O2(g) → CO2(g) + 2H2O(l) ΔH°rxn = -890.4 kJ/molThe enthalpy of formation of CH4(g) and H2O(l) are -74.8 kJ/mol and -285.8 kJ/mol, respectively. Using this data, what is the standard enthalpy change for the combustion reaction of methane (CH4) to produce carbon dioxide (CO2) and water (H2O) at 298 K?

asked Jan 22 in Chemical thermodynamics

1 answer 15 views

Please list and explain the two types of error in statistical testing in theory evaluation

asked Jan 16 in Psychology

1 answer 19 views

Please discuss the limitations of Gestalt theory.

answered Jan 16 in Psychology

1 answer 22 views

When was the social comparison theory proposed?

asked Jan 15 in Psychology

1 answer 68 views

What is the role of attention in perceptual illusions?

asked Jan 15 in Psychology

1 answer 6 views

Please compare the PDP model and the modular theory of mind.

asked Jan 15 in Psychology

1 answer 20 views

What is the difference between a null hypothesis and an alternative hypothesis?

answered Jan 14 in Psychology

1 answer 25 views

What is the health belief model?

answered Jan 14 in Psychology

1 answer 29 views

What is the difference between a sensory threshold and an absolute threshold?

answered Jan 13 in Psychology

1 answer 24 views

What is glucose used for the bacteria?

asked Jan 6 in Science

1 answer 20 views

What force includes forces of attraction and repulsion?

answered Jan 6 in Science

1 answer 7 views

When a series of measurements is precise but not what, the error is usually systematic?

asked Dec 27, 2024 in Science

1 answer 20 views

Which system carries out long-distance transport of materials between the root and shoot systems?

asked Dec 27, 2024 in Science

1 answer 38 views

What can be worn to protect hands and skin from harm?

answered Dec 27, 2024 in Science

1 answer 15 views

Insulin and glucagon help keep blood glucose levels in the normal range because of what type of effects?

asked Dec 27, 2024 in Science

1 answer 17 views

Is the progeny produced by asexual reproduction stronger or weaker than seedlings produced by sexual reproduction?

asked Dec 27, 2024 in Science

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