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Question:
A stream of propane is throttled from 4.298 bar and 450 K to 0.22 bar. This process is irreversible due to frictional losses at the nozzle. What is the final temperature of propane (after throttling)?
The constant pressure heat capacity of propane is 92.7 J/mol/K. Clearly state any assumptions you need to make to solve this problem.
Hint: The initial T and final T are not equal.
Write reactions for which the enthalpy change will be a. Hf for solid aluminum oxide
Using the data on equipment costs given in this chapter or commercial cost estimating software, estimate the cost of the following equipment:
The heat of formation of (NH4)2SO3 (aq) at 25°C is -890.0kJ/mol, and that of NH4HSO3 (aq) is -760 kJ/mol. The heat capacities of all liquid solutions may be taken to be 4.0 J/(g*°C) and that of the flue gas may be that of nitrogen. Evaporation of ..
Adipic acid is used in the manufacture of nylon 6,6. It is made by hydrogenation of phenol to a mixture of cyclohexane and cyclohexane (known as KA oil-ketone and alcohol), followed by oxidation with nitric acid.
For honey, which is Newtonian, the plot should be linear with the slope equal to the viscosity. Calculate the viscosity (or let Excel do it for you). Do a little Google or literature searching and see if you can find a value for the viscosity of h..
The Brayton cycle has the same 4 processes as the Rankine cycle, but the T-S and P-V diagrams look very different, why is that?
Describe issues to be considered when developing an evacuation procedure to help ensure the safe evacuation of employees and visitors in the event of a fire Outline the benefits of undertaking regular fire drills in the workplace
Why is it important - where does galvanising fit into possible corrosion protection strategies?)
Develop the designed circuit using breadboard in the laboratory. Available thermal sensor can be used in the circuit. Discuss the effect of resistors on calibration of the sensor with specific emphasis on the sensitivity of the instrument.
Determine the standard heats of Reactions. Discuss the purpose of feeding oxygen to the reactor. Assuming no heat is lost to the surroundings, estimate the temperature of the gas and slag leaving the gasifier.
In the chlorination of ethylene to produce dichloromethane (DCE), the conversion of ethylene is reported as 99.0%. If 94 mol of DCE are produced per 100 moll of ethylene reacted, calculate the selectivity and the overall yield based on ethylene. T..
production of chemicals from coalcoal has been considered a major component of u.s. energy reserves for a long time and
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