Draw two vapor pressure curves on the same set of axes, where the y axis is exte

Question

Draw two vapor pressure curves on the same set of axes, where the y axis is external pressure and the x axis is temperature. Label one vapor pressure curve as representing pure water, and label the other vapor pressure curve as representing water with sugar dissolved. Briefly (in one or two sentences) use this graph to explain the boiling point of a solvent increases when a solute is added. Also, on each curve, label the boiling point. Consider the natural decomposition of hydrogen peroxide: 2 H_2O_2 rightarrow 2 H_2O_(g) + O_2(g) Define the rate of this reaction in terms of the rates of changes of concentrations of all reactants and products. If hydrogen peroxide is being consumed at the rate of 0.05 M/hr, then at what rate is the oxygen being produced? What is the rate of the overall reaction?

Explanation / Answer

6. Rate = -1/2delta[H2O2]/deltaT = +1/2delta[H2O]/deltaT = +delta[O2]/deltaT

Delta[H2O2]/deltaT = 0.05moles/hr

1/2delta[H2O2]/deltaT = delta[O2]/deltaT

1/2*(0.05moles/hr) = delta[O2]/deltaT

delta[O2]/deltat = 0.025moles/hr

Oxygen is being produced at the rate of 0.025moles/hr

Rate of the overall reaction = k[H2O2]2

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