Questions by PaulinaStran

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1 answer 28 views

Design a counter-current heat exchanger to cool 10,000 liters per hour of cyclohexane at 110°C down to 50°C, while heating 7,500 liters per hour of water at 25°C up to 80°C. The cyclohexane will be cooled by water which enters the heat exchanger at 90°C and exits at 60°C. The overall heat transfer coefficient is expected to be 1,000 W/m2K. Determine the required heat transfer area and the pressure drop across the heat exchanger.

asked Feb 3 in Chemical engineering

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1 answer 36 views

Calculate the standard molar enthalpy change for the following reaction using quantum chemistry and compare it with the literature value: 2H2(g) + O2(g) -> 2H2O(g) Literature Value: -572 kJ/mol

asked Feb 3 in Quantum Chemistry

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1 answer 6 views

What is the definition of group polarization?

asked Jan 17 in Psychology

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1 answer 50 views

What is narrative analysis?

asked Jan 16 in Psychology

0 votes

1 answer 37 views

What type of change occurs when matter changes chemically into an entirely different substance with different chemical properties?

asked Jan 8 in Science

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