Recent activity by BarrettVep43

1 answer 21 views

Here is a question for a chemistry student to solve in the subtopic Calculation of current density in an electrochemical cell: What is the current density (in amperes per square meter) in a zinc-copper galvanic cell, given that the mass of zinc electrode is 10 g and the rate of zinc dissolution is 0.1 g/min, the area of copper electrode is 5 cm², and the potential difference between the electrodes is 1.5 V?

asked 1 day ago in ElectroChemistry

1 answer 48 views

If the equilibrium constant (Kc) for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g) at a certain temperature is 4.0×10^-3, and a catalyst is added to speed up the reaction, how will the equilibrium position shift? Calculate the new equilibrium constant if the catalyst increases the rate of the forward reaction by a factor of 10.

asked 5 days ago in Chemical equilibrium

1 answer 23 views

Why is empirical support important for theory evaluation?

asked Jan 17 in Psychology

1 answer 20 views

Where might the validly of a theory be limited in organisational psychology?

answered Jan 16 in Psychology

1 answer 14 views

What is euthanasia?

asked Jan 15 in Psychology

1 answer 21 views

What is the role of creativity in end-of-life care?

answered Jan 15 in Psychology

1 answer 49 views

What is the difference between general systems theory and interpersonal systems theory?

answered Jan 13 in Psychology

1 answer 9 views

Where do living things obtain the energy to carry out all life processes?

asked Jan 8 in Science

1 answer 24 views

The important equation pv = nrt holds true for substances in what state of matter?

answered Jan 2 in Science

1 answer 45 views

Oil is found in the porous rock layer and trapped by the what?

answered Dec 31, 2024 in Science

1 answer 45 views

If a gyroscope is not spinning, it acquires angular momentum in the direction of what?

answered Dec 30, 2024 in Science

1 answer 24 views

Ejaculation occurs when muscle contractions propel sperm from where?

answered Dec 30, 2024 in Science

1 answer 22 views

Stomata are the main avenues of transpiration, the evaporative loss of water from what?

answered Dec 27, 2024 in Science

1 answer 25 views

Large increases in the diversity of life have resulted from adaptive radiations that followed what?

asked Dec 27, 2024 in Science

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