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Design a heat exchanger for a chemical process that involves cooling 1000 kg of a liquid from 80°C to 40°C using water as the cooling fluid. The process flow rate is 5 kg/min and the maximum allowable pressure drop in the heat exchanger is 5 kPa. Assume a heat transfer coefficient of 1000 W/m²K for the liquid and 5000 W/m²K for the water. Design the heat exchanger to occupy a maximum area of 20 m². What is the surface area of the heat exchanger required and what would be the optimal flow configuration?

asked Feb 4 in Chemical engineering by BrodieUus47 (1.7k points)

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Determine the standard enthalpy of formation for acetic acid (CH3COOH) using Hess's law and the following thermochemical equations:1) C(s) + O2(g) → CO2(g) ΔH = -394 kJ/mol2) 2H2(g) + O2(g) → 2H2O(l) ΔH = -572 kJ/mol3) C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l) ΔH = -1234 kJ/mol4) CH3COOH(l) + O2(g) → CO2(g) + H2O(l) ΔH = ?

asked Feb 4 in Chemical thermodynamics by WillieAlgera (1.5k points)

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How can chemistry students effectively learn laboratory techniques and concepts when limited to virtual or theoretical experimentation due to a lack of access to physical laboratory equipment?

asked Feb 4 in Chemical education by CalvinHornin (1.6k points)

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How can chemistry students in limited-resource settings access essential chemistry textbooks and course materials to attain a high level of understanding and competence in the subject?

asked Feb 5 in Chemical education by SVNCarissa5 (1.8k points)

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For the electrochemical reaction + ↔ + , the cell potential is 0.60 V at 25°C. If the standard reduction potential of 2+ is 0.34 V and that of 2+ is -0.74 V, calculate the equilibrium constant () for the reaction at 25°C.

asked Feb 4 in ElectroChemistry by TracieM73151 (2.5k points)

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How can a chemistry student better prepare for a chemistry-related career in industry, and what skills and knowledge should they focus on developing in order to be successful in this field?

asked Feb 4 in Chemical education by QTHGenevieve (1.7k points)

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How can chemistry teachers provide adequate support for students with learning disabilities to ensure they have equal opportunities to learn and succeed in chemistry lessons?

asked Feb 5 in Chemical education by SoniaFanny4 (2.3k points)

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How can chemistry students effectively learn and retain practical laboratory skills when faced with limited opportunities for hands-on experimentation due to a lack of resources in their learning environment?

asked Feb 4 in Chemical education by FrederickTho (1.9k points)

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Design a process for the production of urea-based fertilizer starting from ammonia and carbon dioxide gas feedstocks. Determine the optimal operating conditions, including temperature, pressure, and reactor design specifications, to achieve maximum conversion and yield of the desired product. Also, identify and address any potential environmental impacts that may result from the production process.

asked Feb 4 in Chemical engineering by AndrewSisley (2.1k points)

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How can chemistry instructors effectively incorporate safety protocols into their labs to ensure that students understand and follow them consistently throughout the semester?

asked Feb 4 in Chemical education by YOKIva496594 (2.6k points)

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Given the molecular formula of a diatomic molecule (A2), how can we use calculation of molecular orbitals to determine the bond order and predict the bond length?

asked Feb 4 in Quantum Chemistry by MarciaBrooke (1.8k points)

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How can chemistry educators emphasize the importance of safety protocols in chemistry labs for students to prevent accidents and injuries?

asked Feb 4 in Chemical education by Sung68J56969 (2.2k points)

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How can chemistry students increase public awareness about the important role of chemistry in society and the economy?

asked Feb 5 in Chemical education by RandellGunte (2.1k points)

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Calculate the standard electrode potential of a silver electrode (Ag) in contact with a solution containing 1.0 M AgNO3 and a hydrogen electrode (Pt) in contact with a solution containing 1.0 M HCl, given that the reduction potential of Ag+/Ag is +0.80V and the reduction potential of H+/H2 is 0.00V at 298K.

asked Feb 3 in ElectroChemistry by GarnetGenove (2.2k points)

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How can chemistry teachers spark interest in the subject among students who perceive it as difficult and uninteresting?

asked Feb 5 in Chemical education by Alejandra79W (1.9k points)

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Determine the standard enthalpy of formation for propane (C3H8) using the following values: - C(graphite) + O2(g) → CO2(g) ΔH° = -393.5 kJ/mol- 2H2(g) + O2(g) → 2H2O(l) ΔH° = -572.4 kJ/mol- C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(l) ΔH° = -2220 kJ/mol

asked Feb 4 in Chemical thermodynamics by EusebiaGilla (1.8k points)

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How can chemistry educators overcome the challenges of insufficient funding to provide sufficient resources and engage students in learning and understanding chemistry concepts?

asked Feb 4 in Chemical education by LaureneLevin (2.7k points)

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How can chemistry students effectively learn laboratory techniques and procedures with limited access to laboratory equipment and facilities?

asked Feb 4 in Chemical education by EmilioNoz268 (1.8k points)

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How can chemistry students in developing countries overcome the limited availability of textbooks and resources to adequately prepare for their exams and improve their understanding of key concepts in the subject?

asked Feb 5 in Chemical education by LavadaGerken (2.3k points)

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How can chemistry students and teachers work together to advocate for increased funding in order to improve and enrich chemistry education in schools with limited resources?

asked Feb 4 in Chemical education by JodieGartrel (1.8k points)

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