Spontaneous chemical reaction
Provide the chemical reaction of an oxidation-reduction reaction that was observed to be spontaneous. Provide a value for the standard cell voltage for this reaction. Is the voltage a positive value as expected for a spontaneous chemical reaction?
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An escalator has to carry 10000 persons per hour with average mass of 75kg to height of 10m. If the mechanical efficiency is 0.6 & the motor efficiency is 0.9 calculate:(a) the power of the motor (b) the current drown from the supply in ca
A thin flat plate is installed in a water tunnel as a splitter. The plate is 0.3 m long and 1 m wide. The freestream speed is 1.6 m/s. Laminar boundary layers from on both sides of the plate.
Starting with only the solid, it is found that at 40C the total gas pressure (NH3 and CO2) is 0.33 atm. Calculate the euilibrium constant Kp/
The half-lives were found to be 161 min at 199 degrees celcius and 12.5 min at 230 degrees celcius. Calculate the acivation energy for this reaction.
Provide the chemical reaction of an oxidation-reduction reaction that was observed to be spontaneous.Provide a value for the standard cell voltage for this reaction. Is the voltage a positive value as expected for a spontaneous chemical reaction?
The half-life for the reaction at 550 C is 81.3 seconds. How long does it take for 78.5% of a phosphine sample to decompose?
What is the theoretical yield of calcium carbonate if 2.05 grams of calcium chloride dihydrate reacts with excess sodium carbonate according to the balanced chemical reaction shown below?
Use polar coordinates to find the volume of the given solid. Below the paraboloid z = 36 - 9x2 - 9y2 and above the xy-plane Use polar coordinates to find the volume of the given solid. Bounded by the paraboloid z = 9 + 2x2 + 2y2 and the plane z = 15
An airplane was moving with a velocity equal to 300mph when the velocity was increased with uniform acceleration to 600mph in 5 min. calculate the number of miles the airplane traveled during that interval of time.
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