Recent activity by MabelCoulter

1 answer 23 views

Design a heat exchanger for a chemical process that requires heating of 50 kg/hr of water from 25°C to 80°C using steam as the heating medium. The available steam is at a pressure of 1.5 MPa and a temperature of 300°C. The overall heat transfer coefficient between the water and the steam is 600 W/m2K. The heat exchanger should be designed to accommodate a temperature drop of 5°C for both the water and the steam. Determine the required surface area of the heat exchanger and the mass flow rate of steam required to meet the process requirements.

answered 1 day ago in Chemical engineering

1 answer 31 views

How does changing the pH of a solution affect the rate of reaction between hydrochloric acid and sodium thiosulfate?

answered 2 days ago in Chemical kinetics

1 answer 58 views

What are some effective study techniques for managing time and reducing test anxiety when preparing for chemistry exams?

asked 6 days ago in Chemical education

1 answer 14 views

According to the social facilitation theory, when do individuals perform better?

answered Jan 17 in Psychology

1 answer 7 views

What is the identity status of an individual who has committed to an identity without exploring alternatives?

asked Jan 17 in Psychology

1 answer 50 views

Who coined the term 'Gestalt'?

answered Jan 17 in Psychology

1 answer 24 views

What is meant by the term 'perspective' in psychology?

asked Jan 17 in Psychology

1 answer 50 views

Who might benefit from group cognitive behavioural therapy?

asked Jan 15 in Psychology

1 answer 61 views

What are the three parts of the ear?

answered Jan 14 in Psychology

1 answer 34 views

Explain the self-fulfilling prophecy

asked Jan 13 in Psychology

1 answer 27 views

Who is the founder of psychoanalytic theory?

asked Jan 13 in Psychology

1 answer 21 views

While components of a mixture can be separated by physical means, the components of a pure substance can only be broken down through what means?

answered Jan 8 in Science

1 answer 33 views

Where does the earth gets its energy from?

asked Jan 8 in Science

1 answer 5 views

What process allows plants to convert light energy into sugars and energy for food?

answered Jan 7 in Science

1 answer 23 views

What is the movement of substances across the membrane without the expenditure of cellular energy called?

answered Jan 7 in Science

1 answer 20 views

What is lowered when salts go into ion form?

asked Jan 6 in Science

1 answer 30 views

Protists are the simplest of what?

answered Dec 31, 2024 in Science

1 answer 23 views

Daughter cells divide by what?

asked Dec 30, 2024 in Science

1 answer 25 views

Crystallization separates mixtures based on differences in what, which usually increases with temperature?

answered Dec 30, 2024 in Science

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