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What must the activation energy be for this statement to be true for a temperature increase from 49 to 59°C?
Describe what kinds of plots you would have to construct to determine if the reaction is first-order or second-order.
The Arrhenius equation relates reaction rates to temperature via the activation energy.
The rate of the reaction is followed by measuring the appearance of I2. The following data are obtained.
Calculate the mole fraction of methanol (CH OH) in a mixture of equal masses of methanol and water.
A 0.1677m aqueous solution of acetic acidhas a freezing point of -0.3152. The calculated freezing point is actually -0.3119. Explain this difference.
Assuming all measurements are recorded in seconds, determine the time required for the reaction to be 60% complete.
If an individual records a blood alcohol level of 0.0267M (0.16% by volume), what will this person's blood alcohol level be 4 hours later.
From your graph, obtain three successive 'half-lives', and from these confirm whether or not the reaction is first-order with respect to Pt(bipy)Cl2.
How do you explain the fact that other studies demonstrate this is a second order reaction with water as the second reactant?
Column 2 is the calculated production rate of Zn in kg/day (don't forget to take the current efficiency into account).
The rate of a particular reaction triples when the temprature is increased from 25C to 35C. Calculate the activation energy for this reaction.
Calculate the average rate of decomposition of H2O2 between 0 and 2.16x10^4 s. Use this rate to calculate the rate of production of O2(g).
Methanol production process is operated at temperatures of 25 - 30 degrees & a pressure of 50 - 100 atmospheres, in the presence of a copper based catalyst.
If you wish to dissolve a lump of sugar in water, give three ways you could increase the rate at which the sugar dissolves?
Explain why packed and spinning band fractional distillation columns are more efficient at separating two liquids having close boiling points.
Experiments show that, in the following reaction, doubling A doubled the reaction rate and the overall reaction order was 2. What is the reaction order?
The initial velocity of an enzyme catalyzed reaction was measured at a serious of different initial substrate concentrations in the table.
Using a box model for the city, calculate the average steady-state concentration of pollutants if the average pollutant emissions from the city.
Assuming 100% retention of the alum, what is the weight % Al+3 present in the substrate after alum addition and convert the weight % of Al+3 to ppm
The rate of the following reaction in aqueous solution is monitored by measuring the rate of formation of (I3^-). The data obtained is listed in the table.
Calculate the liquid phase / gas phase ratio for SO2, HNO3, HCl and H2O2 in a cloud droplet (L= 10-6) and determine which phase dominates.
Determine the order of the reaction with respect to HgCl2, with respect to (C2O4^2-)
Explain the concept of chemical kinetics and the various factors that influence reaction states.
What is the rate constant for the reverse reaction at the same temperature?