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Using the parameters of the equation for problem 10 give a graph of temperature vs time at z = 0, for t varying from 0 to 1 ms, using the analytical solution of the heat conduction equation given in the chapter. On the same graph plot temperature, ignoring the effect of conduction, which assumes linear variation with time. Comment on your findings in relation to diffusion time found in problem 10.
A flat slab of Douglas fir wood 50.8 mm thick containing 30 wt% moisture is being dried from both sides (neglecting edges and ends). The equilibrium moisture content at the surface of the wood due to the drying air blown over it is held at 5 wt% mois..
Design a suitable sieve plate for conditions below the feed point. Equilibrium data for the system ethanol-water, at 760 mmHg, mol fractions ethanol:
QUESTION 11 - Steam boiler plant in a petroleum refinery has an overall thermal efficiency on gross C.V . of the fuel of 85 % and an out put of 90720 kg of steam per hour. The steam is produced at a pressure ..
In a project manager simulation were you made different language versions in French, German, and Japanese of a software product named LullSIM with an internal team. In this simulation you were not able to choose the option of hiring contractors, g..
Calculate the volume of lithium hydroxide at 0.12 M. required to neutralize 25 mL of sulphuric acid at 2.5 M. 3 marks 2. A sample of 2.5 g of solid NaOH will neutralize 125 mL of sulphuric acid. Calculate the molarity of the sulphuric acid. 3 mark..
A sealed rigid tank of 1 m3 capacity contains 1.2 kg of water at 1 bar and 99.63 °C. To this tank we add heat until the pressure increases to 3 bar. What is the temperature at the end of the heating?
A civil engineer is designing a road. At what angle should he bank the road surface in a curve of radius 70m so that there is no tendency for a vehicle traveling at 90 km/h to slip sideways, either up or down the banking.
Cite the indices of the direction that results from the intersection of each of the following pair of planes within a cubic crystal:
A spring (not shown in the figure), whose force opposes the magnetic pull, restrains the motion of the armature. If the operating coil has 1800 turns carrying a current of 1 A, and the gaps are set at 0.125 cm each, find the pull that must be exer..
determine the analog output voltage as a fraction of the reference voltage.
Develop a set of performance specifications for an electromechanical device to raise and lower the lower leg of a wheelchair user (to prevent edema).
Two moles of benzene are mixed with 3 moles of acetonitrile under constant temperature and pressure at 45 °C and 33 kPa. What is the phase of the mixture (vapor, liquid, or mixed)?
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