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Count Rumford observed that nine burning candles generate heat at the same rate that a single horse driven cannon-boring piece of equipment generates heat. James Watt observed that a single horse can raise a 300 lb weight 100 ft. in 1 minute. Using the observations of Watt and Rumford, determine the rate at which a candle generates heat.
They want the answer in Joules/min. I know 1J= (kg*m^2)/s^2. By plugging in the values above (after conversions) For the horse i get 38.62 Joule for the entire job. So would that be 38.62Joules per minute also? This is where I am stuck. I know the ration between the candle and horse, but the answer in the back of the book is different than mine, I think it is because the 38.62 J/min is wrong. Can you help clarify?
The vapor pressure of chlorine dioxide (ClO2) is 155 Torr at -22.75 ? C and 485 Torr at 0?C. What is the normal boiling point of chlorine dioxide?
the addition of aqueous ammonia to the cathode compartment of the cell described below reduces the cell potential.
Write the half-cell reaction for the oxidation. Write the half-cell reaction for the reduction. Write the balanced equation for the cell reaction. Keep substances in the order given in the original equation.
What product would you expect to make? Propose a detailed reaction mechanism for this reaction. What by-products might be expected in this experiment?
A 25.0 mL sample of an HCl solution is titrated with a 0.139 M NaOH solution. The equivalence point is reached when 15.4 mL of base is added. What was the concentration of the HCl in solution in M?
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calculate the weight of sodium hypochlorite, NaOCl.
An empty flask weighs 252.2 grams. When filled with water ( d= 1.00 g/cm3) the flask and its contents weigh 591.8 g)
How can you tell the difference between a joule of energy and a calorie of energy by looking at bars
A mixture of gases contains 1.35 g of N2, 2.64 g of H2, and 2.38 g of NH3. If the total pressure of the mixture is 1.64 atm, what is the partial pressure of each component. PN2 atm PH2 atm PNH3 atm
a patient needs to take 875 mg of ibuprofen twice daily. the pills in the bottle are each 250. rm mg. how many pills
Determine the microcanonical partition function, omega. Determine fundamental relation of system, using Stirling's approximation Determine the energy and heat capacity for the system as a function of temperature using Stirling's approximation. Det..
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