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A Carnot Cycle is operated (using 1 mole of an ideal gas as the working substance). The full cycle is A->B->C->D->A. A->B is an isothermal expansion at 1000K which also absorbs 150 kJ of heat. The isothermal compression (C->D) operates at 200 K. > #(a) what is the overall efficiency of the cycle? > #(b) how much work can be done by the engine as it operates through one cycle > #(c) how much heat is given off during the isothermal compression > #(d) what is the entropy change (for the gas) during the isothermal compression?
using the standard enthalpies of formation, what is the standard enthalpy of reaction? CO(g) +H2O(g) =CO2 (g) + H2 (g)
Predict the mass of the most abundant fragment signal in the mass spectrum of 2,2-dimethylpentane. 85 amu 29
What is the volume of ammonia gas, measured at 489.9mmHg and 37.4oC, is required to produce 8.41g of ammonium sulfate according to the following balanced chemical equation
Consider the pH range for the following indicators and select the most appropriate indicator for the titration of an HCN solution with a NaOH titrant.
What is the total concentration of ions in the solution obtained by mixing 0.50 L of 0.10M solution of barium chloride with 0.50 L of 0.20 M solution of sulfuric acid.
Which of the following statements about free radicals is true? Free radicals are considered good because they are good oxidizing agents.
There are two isomeric alkenes that would produce 1-iodo-1-methylcyclohexane on treatment with HI. One is more reactive than the other
Calculate boiling point of a solution of 500.0 g of ethylene glycol dissolved in 500.0 g of water. kf = 1.86 c/m and kb = 0.512 c/m. Use 100 degrees celsius as the boiling point of water.
A bottle containing 330 of cleaning solution is used for carpets. If the cleaning solution has a specific gravity of 0.850, what volume of solution was used?
During the discharge of an alkaline battery, 4.30 g of Zn are consumed at the anode of the battery. What mass of MnO_2 is reduced at the cathode during this discharge? (in g) also How many coulombs of electrical charge are transferred from Zn to M..
If 38.6 grams of hydrogen sulfide gas (H2S; MM = 34.08 g/mol) react with 36.3 grams of oxygen gas (O2, MM = 32.00 g/mol), what is the mass of sulfur dioxide (SO2, MM = 64.06 g/mol) gas produced
Determined if CS 2 of 2.500 grams mix with an excess of chlorine gas , 9.310 Kilo joule of heat is evolved. What sort of reaction is this , Is the reaction exotermic also find out delta H for the reaction?
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