Write the thermochemical equation for the following reaction that occur at constant pressure. 1.) Formation of carbon dioxide gas from carbon (graphite) and oxygen, yields 393.5kJ of heat

05: Acetylene gas (C₂H₂) at 25 °C is burned during a steady-flow combustion process with 30 percent excess air at 27 °C. It is observed that 75x10³ kJ of heat is being lost from the combustion chamber to the surroundings per kmol of acetylene. Assuming combustion is complete, determine the exit temperature of the product gases.

Write and balance the chemical equation for the combustion reaction of propane (C3H₂) in air and determine the stoichiometric volume of air.

Liquid gas undergoes combustion in air, releasing 100kf of heat and producing two gaseous products. Include energy in the reaction. When HCL reacts with NaOH to produce NaCl and H2O, 60kj of heat is released in the surroundings. a. State whether the surrounding gets warmer or colder. b. Sketch a PE graph for this reaction.

8.29 Show complete solution and diagram

Isopropanol, with 13 wt% water, can be dehydrated to obtain almost pure isopropanol at a 90% recovery by azeotropic distillation with benzene. When condensed, the overhead vapor from the col- umn forms two immiscible liquid phases. Use Table 2.4 with data in Perry's Handbook and the data below to compute the heat-transfer rate in Btu/h and kJ/h for the condenser. Water-Rich Organic-Rich Overhead Phase Phase Phase Vapor Liquid Liquid Temperature, °C 76 40 40 Pressure, bar 1.4 1.4 1.4 Flow rate, kg/h: Isopropanol 6,800 5,870 930 Water 2,350 1,790 560 Benzene 24,600 30 24,570

Choose the correct option: 19. A reduced pressure (vacuum) distillation is used when: a) The component of interest has a high boiling point b) The substance decomposes at relatively low temperatures. c) The boiling points are very close. d) There is a racemic mixture