## If the flow rate of each solvent stream is 50.0 kg/min, how many equilibrium stages are required?

A cross flow extraction system is being used to extract furfural from water into methyl-isobutyl ketone
(MIBK) at 25oC. The 150 kg/min of aqueous feed contains 0.11 wt% furfural. We desire a 90.0%
recovery of the furfural that enters the system in the aqueous feed. The entering solvent stream
contains 0.03 wt% furfural in MIBK. Assume flow rates of the aqueous raffinate streams and the extract
streams are constant. Equilibrium data is given in Table 1. If the flow rate of each solvent stream is 50.0
kg/min, how many equilibrium stages are required?
a. Solve graphically
b. Solve each stage analytically.

### Calculate the maximum achievable bridge out-of-balance voltage for an applied torque T of 103 N m given the following

Four strain gauges, with specification given below, are available to measure the torque on a cylindrical shaft 4 cm in diameter connecting a motor and load. (a) Draw clearly labelled….

### Find the gain and phase characteristics of the maintaining amplifier.

A solid-state capacitive humidity sensor has a capacitance given by: C = 1.7 RH + 365pF where RH is the percentage relative humidity. The sensor has an associated parallel resistance….

### calculate the mean velocity of the gas at maximum flow rate

A pitot tube is used to measure the mean velocity of high pressure gas in a 0.15 m diameter pipe. At maximum flow rate the mean pitot differential pressure is….