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The biot modulus for a 3 cm diameter sphere at 100degree C subjected to a convective air flow resulting in an average convective heat transfer coefficient from the surface of 30W/m2
the paint formerly used on some storage tanks contained aluminum powder which reflected heat from the surface of the
A mixture of ethanol and benzene is separated in a network of distillation and membrane separation steps. In one intermediate step, a near-azeotropic liquid mixture of 8,000 kg/h of 23 wt% ethanol in benzene is fed to a pervaporation membrane cons..
Calculate the theoretical stages needed to separate a 10 mole% ethanol liquid saturated feed into a 80 mole% distillate and a 0.1 mole% bottoms at 1 atmosphere pressure.
Calculate the grams of H2O that will form on decomposition of 0.10 mole of ammonium nitrate
A particle with the mass of a proton is trapped in a box. The particle falls from the state to the state and emits 0.16 meV of energy. What is the size of the box? (nm
Using an average value of 2.4 for the volatility of benzene relative to toluene, calculate the number of theoretical plates required at total reflux. Also calculate the minimum reflux ratio, if the feed is liquid and at its boiling point.
Assuming that there are no other significant side reactions, calculate masses of alcohol and ether produced, per 1000 kg of allyl chloride fed to the reactor.
Assume that losses cannot be offset against revenues from other operations for tax purposes (i.e., no tax credits in years when the plant makes a loss). Estimate the following:
Where 'k1' and 'k2' are rate constants,tR,maxis the time at which the maximum concentration of 'R' is obtain and CR,maxis themaximum concentration of 'R'
Coal gasification is carried out at 850 °C and 40 atmospheres pressure, by reaction of coal with steam and oxygen. The empirical formula of the coal is roughly CH0.8S0.013. What materials of construction would you recommend for:
Crude dichlorobenzene is pumped from a storage tank to a distillation column. The tank is blanketed with nitrogen and the pressure above the liquid surface is held constant at 0.1 bar gauge pressure. The minimum depth of liquid in the tank is 1 m.
The left side of of the mechanical energy equation has three terms: P/p, (1/2)av^2 and gz. show that each of these terms has the dimension of energy per mass of fluid by....a) converting each term to units of Btu/lbm beginning with pressure in psi, d..
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