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Benzene is heated from 300 K (liquid) to 450K (superheated vapor) at a constant pressure of 3 bar at a rate of 100 kmol/hr in a heat exchanger. (Tsat = 392K at 3 bar) A) Calculate the heat exchanger duty in kW, B) What is the latent heat of vaporization Tsat in kJ/mol? (Answers are 1366 kW and 28.4 kJ/mol) Please show work for good rating.
Consider the following reaction: NH4HS(s) NH3(g) + H2S(g) An equilibrium mixture of this reaction at a certain temperature was found to have [NH3]=.278M and [H2S]=.355M.
The half-life for a first order reaction at 550 oC is 85 sec. How long it would take for 23% of the reactant to decompose?
Write the structure for the organic reagents and products, name the products and indicate stereochemistry when appropriate
A 100. mL sample of 0.200 M aqueous hydrochloric acid is added to 100. mL of 0.200 M aqueous ammonia in a calorimeter whose heat capacity (excluding any water) is 480. J/K. The following reaction occurs when the two solutions are mixed.
A chemist dissolves 0.099 g of CuSO4 · 5 H2O in water and dilutes the solution to the mark in a 500-mL volumetric flask. A 36.1-mL sample of this solution
A 0.0355 g sample of an unknown molecular compound is dissolved in 1.000 g of liquid camphor at 200.0°C. Upon cooling, the camphor freezes at 157.7°C. Calculate the molar mass of the unknown compound.
A coffee-cup calorimeter is calibrated by adding 1840 J of heat to the water in the calorimeter and measuring a 1.72C rise in temperature.
Acetyl chloride reactions, What major organic products would you expect to be formed when acetyl chloride reacts with the following reagents?
A balloon containing 34.5 L of a gas at room temperature (25.0 oC) is heated to 73.5 oC. What is the volume of the balloon at this new temperature?
Give the structure of the phosphorus ylide and carbonyl compound you might use to prepare the following alkenes
A helium balloon at a high altitude has 2.1 × 104 L of helium at 0.40 atm and -13°C. If the balloon descends to an altitude in which the atmospheric pressure is 1.00 atm and the temperature is 20°C.
calculate how much more quickly 235 ^UF6 effuses than 238 ^UF6. give the answers as the ration of rates of 235 ^UF6 to 238 ^UF6 to four decimal places.
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