Recent activity by GraceHershbe

1 answer 5 views

Consider the reaction: 2NOBr(g) <=> 2NO(g) + Br2(g), which has an equilibrium constant of 1.5 x 10^-5 at a certain temperature. If you start with 0.10 M of NOBr and let the reaction reach equilibrium, find the equilibrium concentrations of NOBr, NO, and Br2.

answered 2 days ago in Chemical equilibrium

1 answer 45 views

How can we determine the element composition of a rock sample using X-ray diffraction analysis?

asked Jan 29 in Analytical Chemistry

1 answer 58 views

Calculate the Gibbs free energy change for the reaction: 2H2(g) + O2(g) → 2H2O(g) at standard conditions (298 K and 1 atm pressure) given the following data:ΔH˚f[H2O(g)] = -241.8 kJ/molΔH˚f[H2(g)] = 0 kJ/molΔH˚f[O2(g)] = 0 kJ/molΔS˚[H2(g)] = 130.7 J/K·molΔS˚[O2(g)] = 205.0 J/K·molΔS˚[H2O(g)] = 188.8 J/K·mol

asked Jan 23 in Chemical thermodynamics

1 answer 18 views

What is metacognition?

asked Jan 20 in Psychology

1 answer 24 views

According to the biological theory, what is the role of the hypothalamic-pituitary-adrenal axis in anxiety?

answered Jan 17 in Psychology

1 answer 22 views

What is the difference between post-decisional regret and cognitive dissonance?

answered Jan 16 in Psychology

1 answer 28 views

How does the Ames-room illusion work?

answered Jan 15 in Psychology

1 answer 21 views

What is the life history theory?

asked Jan 15 in Psychology

1 answer 24 views

What is punishment in behavioural psychology?

answered Jan 15 in Psychology

1 answer 27 views

Which measure shows how individuals in a population are distributed, or spread throughout their area?

answered Jan 8 in Science

1 answer 13 views

What builds up in an artery and reduces blood flow?

answered Jan 6 in Science

1 answer 20 views

Sound, like all waves, travels at a certain speed and has the properties of frequency and this?

asked Dec 31, 2024 in Science

1 answer 53 views

In the nematic phase, only the long axes of the molecules are parallel, and the ends are staggered at random intervals. in the smectic phase, the long axes of the molecules are parallel, and the molecules are also arranged in planes. finally, in thecholesteric phase, the molecules are arranged in layers; each layer is rotated with respect to the ones above and below it to give it this?

asked Dec 31, 2024 in Science

1 answer 65 views

What term describes a wave in which particles of the medium vibrate at right angles, or perpendicular, to the direction that the wave travels?

asked Dec 28, 2024 in Science

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