Questions by Jenifer97455

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1 answer 38 views

Design a system for the production of lubricants in a chemical plant that can produce at least 1000 liters of lubricant per day. The system should also ensure the quality and consistency of the final product and take into account the use of sustainable and environmentally friendly materials and processes.

asked Feb 4 in Chemical engineering

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0 answers 84 views

A student needs to prepare a solution containing 50 g of ethanol (C2H5OH) dissolved in 250 g of water (H2O) at 25°C. Assuming the heat of mixing for ethanol and water is -5.02 kJ/mol, calculate the heat released or absorbed when the two substances are mixed. Express your answer in kJ.

asked Jan 22 in ThermoChemistry

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1 answer 25 views

Who proposed the rejection sensitivity theory of self-esteem?

asked Jan 15 in Psychology

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1 answer 46 views

Why must values of specific heat be looked up in tables?

asked Jan 8 in Science

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1 answer 47 views

Luster, malleability, ductility, and conductivity are all properties of which kind of material?

asked Dec 31, 2024 in Science

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