Chemistry, 16.03.2020 19:00, urgurlkitty
Which of the statements is correct regarding catalysts ( click 4 that apply )
Catalyst increase the rate of reaction
Catalyst decrease the rate of reaction
Catalyst increase the activation energy needed to start a reaction
Catalyst decrease the activation energy needed to start a reaction
They are used up in the reaction
They are not used up in the reaction
Catalyst are very specific
Catalyst are not very specific
Answers: 2
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)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.
Answers: 1
Which of the statements is correct regarding catalysts ( click 4 that apply )
Catalyst...
Catalyst...
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