The standard heat of reaction for the production of formaldehyde in the reaction, 2 CH;OH (1) + 02 (g) →2 HCHO (g) + 2 H20 (1), is -326.2 kJ/mol. a. Is the reaction exothermic or endothermic? Would you heat or cool the reactor to keep the temperature constant? b. Explain physically why heat is released or absorbed when a reaction occurs. c. If the temperature and pressure are keep at standard (25°C, 1 atm), what is the rate of heating/cooling required in kcal/hr if 1000 kg/hr of formaldehyde is formed?

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