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show that for isothermal atmosphere P2/P1 = e^-(g/RT)(x2-x1). The pressure at the base of a skyscraper is 14.7 psi and at the top of the skyscraper is 14.4 psia. the temperature is constant at 70 F i.e. isothermal atmosphere. How tall is the skyscraper?
What is the probability that k columns in a random k x n binary matrix have rank k? How about the probability that k + 1 columns in this matrix have rank? Compute these two probabilities for n = 16 and k = 5.
Given the following experimentally determined standard molar entropies at 298.15 K and 1 bar, S [CH3OH]=126.8 J⋅K-1⋅mol-1 S°[CO]=197.7 J⋅K-1⋅mol-1
Compute the sending-end voltage, current, real power, and reactive power for the following conditions:
what was the mass of the ore sample? Which of the four transition metal ions in this titration has the highest oxidation state?
Calculate q, w, and E for the helium in the balloon. (The molar heat capacity for helium gas is 20.8 J/*C x mol .)
Determine whether the claimed performance of the process is consistent with the second law. Assume that air is an ideal gas for which Cp = (7/2)R.
The flow rate of methyl acetate in the mixture is to be 100.0lb-mole/h. What must the mixture flow rate be in lbm/h?
Technical specialists at the company have flagged part of an internal calculation by a junior engineer as potentially erroneous. The excerpt is given below. Please prepare a brief memo for our Quality Assurance department describing the errors and pr..
Evaporation of Sugar Solution in Double Effect Evaporator. A double-effect evaporator with reverse feed is used to concentrate 4536 kg/h of a 10 wt %sugar solution to 50%. Correct equations for the mass, energy balances: Correct inputs& constraints..
Here you compare the value of H when you use actual data (steam tables) and when you assume ideal gas. Reference means H = 0. State all reasonable assumptions. Vapor-liquid phase partitioning is involved.
Use tabulated thermodynamic data to find ΔG° for this reaction at the standard temperature of 25°C. Then calculate the calculate ΔG°1000 for this process when it occurs at 1000 K.
A continuous distillation unit, consisting of a perforated-tray column together with a partial reboiler and a total condenser, is to be designed to operate at atmospheric pressure to separate ethanol and water. The feed, which is introduced into t..
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