Recent activity by Lonnie466035

1 answer 29 views

How can the Glass Transition Temperature (Tg) of a polymer be determined using Differential Scanning Calorimetry (DSC)?

asked 5 days ago in Polymer Chemistry

1 answer 32 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 Feb 4 in Chemical engineering

1 answer 82 views

How does the change in molecular geometry affect the electronic properties and the charge distribution of a given molecule? Use ab initio calculations to calculate the molecular properties of a selected molecule at different geometries and analyze the resulting data.

answered Jan 31 in Computational Chemistry

1 answer 9 views

What initiatives can be taken by educational institutions to better prepare chemistry students for career opportunities in industry and research?

answered Jan 30 in Chemical education

1 answer 41 views

Who proposed social impact theory?

asked Jan 15 in Psychology

1 answer 39 views

What specific part of the brain regulates the endocrine system?

asked Jan 7 in Science

1 answer 37 views

What kind of reproduction involves just one parent and produces offspring genetically identical to each other and to the parent?

asked Jan 7 in Science

1 answer 6 views

What do you call the point at which the entire weight of a body may be considered to be concentrated?

asked Jan 6 in Science

1 answer 32 views

Reducing the number of molecules in a rigid container causes what to decrease?

asked Dec 31, 2024 in Science

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