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Find the energy conversion efficiency of a 2000. lbf thoroughbred racehorse with a 120. lbf jockey and tack running 1.25 miles on a flat track in 144 s. The horse accelerates to a constant speed at the starting gate and maintains this speed throughout the race.
During the race, the horse expends energy at the rate of 33,000. Btu/h. Ignore any aerodynamic effects.
What volume of a 0.1 M ClO- solution reacts stoichiometrically with a 10 mL solution of 0.2 M CrO2-? Use the reaction 2 CrO2- + 3 ClO- --> 2 CrO4-2 + 3 Cl- to assist in the calculation. You do not have to balance the oxygens and hydrogens in the r..
What is the maximum number of electrons in an atom whose highest-energy electrons have the principal quantum number n=5
Compute the electrode potential of hydrogen electrode at standard temperature if the electrode is immersed into acidic solution with pH = 2.85 and the partial pressure of hydrogen gas p(H2) = 0.73 atm.
Calculate the change in entropy (in J/K) when 89.8 g of nitrogen gas is heated at a constant pressure of 1.50 atm
Problem- A sample of carbon dioxide is contained in a 125.0 mL flask at 0.917 atm and 18.8 C. How many molecules of gas are in the sample
Concentrated HCl was added to a Ca(OH)2 suspension (in water) and the precipitate dissolved. Explain this observation on the basis of a Le Chatelier's shift in the equilibrium.
In the photosynthesis reaction, how is the equilibrium yield of glucose(C6H12O6) affected( increaed, decreased, no change) by the following action water is added.
An Ideal gas originally at a temperature T1 and pressure P1 is compressed reversibly against a piston to a volume equal to one-half its original volume, Draw a diagram of the process in the P-V plane.
Explain the pH of a solution made by adding 8.80 grams of ammonium chloride to 450mL of 0.105M sodium hydroxide. No change in volume takes place
What concentration of naphthalene in grams per liter would be needed to give an absorbance of 1.0 at 220nm
Identify each half reaction as oxidation or reduction; mark which reaction occurs in anode and which in cathode. Write the chemical equation describing the spontaneous cell reaction (The overall reaction)
At a given temperature, 1.40 atm of H2 and 2.03 atm of I2 are mixed and allowed to come to equilibrium. The equilibrium pressure of HI is found to be 1.305 atm. Calculate Kp for the reaction at this temperature.
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