Recent activity by CarloReiner9

1 answer 29 views

Design a heat exchanger that can effectively transfer heat between a hot stream of ethanol with a flow rate of 2 kg/s and a cold stream of water with a flow rate of 5 kg/s. The inlet temperature of ethanol is 80°C, while the inlet temperature of water is 20°C. The outlet temperature of ethanol should be 30°C, while the outlet temperature of water should not exceed 35°C. The heat exchanger should have a heat transfer coefficient of at least 500 W/m^2K and a total surface area of no more than 10 m^2.

asked 1 day ago in Chemical engineering

1 answer 42 views

Calculate the corrosion current density of a copper metal in 1 M HCl solution at 25°C, given that the corrosion potential of copper electrode in the given environment is -0.35 V(SHE) and the exchange current density is 0.038 A/m². Also, determine the corrosion rate of copper in the same environment if the density of copper is 8.96 g/cm³.

answered Jan 23 in ElectroChemistry

1 answer 39 views

Calculate the activation energy required for a chemical reaction to occur, given that the rate constant at 298 K is 4.70 x 10^-3 s^-1 and the rate constant at 313 K is 1.20 x 10^-2 s^-1. (Assume the Arrhenius equation applies.)

answered Jan 23 in Chemical reactions

1 answer 37 views

Where does the debate between the normal and abnormal theories take place?

answered Jan 20 in Psychology

1 answer 19 views

How did Roger Sperry's split-brain research inform us about hemispheric specialisation?

answered Jan 20 in Psychology

1 answer 5 views

What is correlation research?

asked Jan 20 in Psychology

1 answer 31 views

What is the focus of Erikson's stage of identity versus confusion?

asked Jan 15 in Psychology

1 answer 50 views

Why do comet tails always point away from the sun instead of trailing behind the comet?

asked Jan 8 in Science

1 answer 26 views

Where does most of the earth's energy come from?

answered Jan 8 in Science

1 answer 46 views

What happens to cells in a hypertonic solution as water leaves the cell via osmosis?

answered Jan 6 in Science

1 answer 25 views

What do jellyfish lack in their nervous system?

asked Jan 6 in Science

1 answer 25 views

The components of what keep their own identity when they combine and can usually be easily separated?

answered Dec 31, 2024 in Science

1 answer 20 views

Common forms of what include light, chemical and heat, along with kinetic and potential?

answered Dec 30, 2024 in Science

1 answer 9 views

What simple machine consists of two connected rings or cylinders, one inside the other, which both turn in the same direction around a single center point?

asked Dec 28, 2024 in Science

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