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Question: A stirred-tank heater could have an external jacket with saturated steam condensing in the jacket to heat the tank. Assume that this modification has been made to the system in Example and derive an analytical expression for the response of the tank temperature to a step change in the steam pressure. Begin by sketching the system and listing assumptions.
Example: Stirred-tank heat exchanger To provide another simple example of an energy balance, the stirred-tank heat exchanger in Figure is considered
Iodine-131 decays to produce xenon-131. Which type of nuclear radiation is emitted in this reaction
What is the freezing point of a solution prepared by dissolving 11.3g of Ca(NO3)2 in 115g of water? (The molal freezing point depression of constant water is 1.86 °C/m).
The organic solvent pyridine, C5H5N (aq) is a base with a strong irritating odor. Calculate the pH of a 0.300 M aqueous solution of PYRIDINe at 25 degrees Celcius.
If 37.89 mL of 2.0 M sodium hydroxide are used to titrate a 45.00 mL sample of sufuric acid, what is the molarity of the acid? Enter only the number rounded to the correct number of significant figures; do not enter any units.
Compute the final temperature of solution when 12 g of oxalic acid (COOH)2(s), is dissolved in 113.0mL of water that is initially at 16 C. Explain the enthalpies of formation of oxalic acid in the solid as well as aqueous phases are -826.8 and -81..
Calculate the minimum number of grams of propane,C3H8 (g) , that must be combusted to provide the energy necessary to convert 3.15kg of ice at -15.5degC to liquid water at 75.5degC. C3H8 (g)
How many grams of oxygen are needed to react with 25.0g of MG. How many grams of Mgo will result
Problem- How many grams of dry NH4Cl need to be added to 1.90L of a 0.200M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.55? Kb for ammonia is 1.8*10^-5. Express your answer numerically in grams to three significant fig..
Problem- For the reaction shown, compute the theoretical yield of product (in moles) for each of the following initial amounts of reactants.2Mn(s)+2O2(g)?2MnO2(s)
The phase diagram of ammonia can be characterized by the following information. The normal melting and boiling temperatures are 195.2 and 239.82 K, respectively, the triple point pressure and temperature are 6077 Pa and 195.41 K,
Question- Aluminum reacts with chlorine gas to form aluminum chloride. (a) Give the balanced equation for the reaction. (b) What is the maximum mass of aluminum chloride that can be formed when reacting 25.0 g of aluminum with 30.0 g of chlorine? ..
Question- A 97.4g of unknown metal sample was heated to 98.7 degree C and placed into calorimeter containing 75.0 g of water at 23.6 degree C (c of water =4.184 J/g.K) the heat capacity calorimeter was 15.7 J/K. the final temperature in the calori..
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