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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?
Would a damp filter paper affect the theoretical yield, calculated actual yield and calculated percent yield. Briefly explain.
Draw the Lewis structure of the major resonance form of the thiosulfate ion, S2O3 2-. Include all lone pairs of electrons. Include formal charges on atoms with charges.
If 1.50 g of X reacts with 3.54 g of M to produce 4.22 g of a compound with the formula M4X3, and the atomic mass of M is 48.5 amu.
Carbon dioxide is eliminated from pyruvate ions by a decarboxylase enzyme through the following first order reaction Pyruvate(l) goes to CO2(g) + acetaldehyde(l)
How many grams of dry NH_4Cl need to be added to 1.60 L of a 0.800 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.99? Kb for ammonia is 1.8*10^{-5}.
What is the rate law for step 1 of this reaction? ((Express your answer in standard Mastering Chemistry notation.
Draw the electron-dot formula for each of the following: a) H3COCH3 (the atoms are in the order C O C); b) CS2 (the atoms are in the order S C S); c) CLO2^-; d) SF3^+; e) H2CCHCN (the atoms are in the order C C C).
A certain antacid contains only Al(OH)3 (FW=78.00) and Mg(OH)2 (FW=58.33). If a 0.2678 g sample of the antacid requires 10.25 mL of 0.9815 M HNO3 for neutralization, what is the % by mass of Al(OH)3 in the mixture
Tabulate the viscosity and density of water between the temperatures of 10 degrees and 80 degrees, in one degree increments in the 20 to 35 degrees interval and in 5 degrees increments outside this interval
If iron(III) acetate is added to be 1 x 10^-10 M in a solution that is 0.10 M NH3, what is Qsp and will Fe(OH)3 precitate? the Ksp of Fe(OH)3 is 4x10^-38 and Kb for NH3 is 1.8x10^-5
For this system, calculate the change in entropy (ΔS), the change in internal energy (ΔU), and the change in enthalpy (ΔH) for a reversible adiabatic expansion of this gas to a final pressure of 1.10 atm. Also calculate the final temperature (T) a..
A 45- piece of ice at 0 is added to a sample of water at 20. All of the ice melts and the temperature of the water decreases to 0. How many grams of water were in the sample
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