The rate constant (k) depends on which of the following?
The pressure of gaseous products. |
||
The catalyst. |
||
The pressure of gaseous reactants. |
||
The temperature. |
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
The rate constant (k) depends on which of the following? The pressure of gaseous products. The...
Experiments on the reaction A → Products Show the rate constant to be k = 2.7 mol-1 L1 s-1. Which of the following statements about the reaction is/are correct? 1. Overall, the reaction is 1st order. 2. When the initial concentration of A is doubled at constant temperature, the value of k remains unchanged. 3. Addition of a catalyst decreases the activation energy.
Which of the following will change the value of the equlibrium constant, K. for a given reaction? Increasing the concentrations of the reactants Increasing the pressure Increasing the concentrations of the products Increasing the temperature What is kinetic energy? the energy of an object's motion and position the energy from moving charged particles the energy stored due to an object's position or state the energy of an object in motion An equilibrium constant (K) much larger than I means that...
(d) 2 mol gaseous ethene (C2H4) and 1 mol gaseous water are combined in a reactor and react to form ethanol (C2HsOH) according to C2Hs (g) + H20 (g) C2HsOH (g) At a temperature of 500 K the equilibrium constant Kp is 1.256 x 10-2 bar1, Assume that all reactants and products behave like perfect gases (i) Calculate the equilibrium composition (in mol%) of the gas mixture at 500 K and a combined pressure of 1 bar. 8 marks (ii)...
For a first-order reaction, the half-life is constant. It depends only on the rate constant k and not on the reactant concentration. It is expressed as 0.693 - 1/2K For a second-order reaction, the half-life depends on the rate constant and the concentration of the reactant and so is expressed as 1/2 k(Alo Part A A certain first-order reaction (A>products) has a rate constant of 9.60x10 s-1 at45 C. How many minutes does it take for the concentration of the...
For a first-order reaction, the half-life is constant. It depends only on the rate constant k k and not on the reactant concentration. It is expressed as t1/2=0.693k t 1 / 2 = 0.693 k For a second-order reaction, the half-life depends on the rate constant and the concentration of the reactant and so is expressed as t1/2=1k[A]0. A certain first-order reaction (A→products A → p r o d u c t s ) has a rate constant of 9.30×10−3...
For a first-order reaction, the half-life is constant. It depends only on the rate constant k and not on the reactant concentration. It is expressed as t 1/2 = 0.693 k For a second-order reaction, the half-life depends on the rate constant and the concentration of the reactant and so is expressed as t 1/2 = 1 k[A ] 0 Part A A certain first-order reaction ( A→products ) has a rate constant of 9.90×10−3 s −1 at 45 ∘...
Pressure-Based versus Concentration-Based Equilibrium Constants Review Const Part A For the reaction The equilibrium constant, K. is calculated using molar concentrations. For gaseous reactions another form of the equilibrium constant, K. is calculated from partial pressures instead of concentrations. These two equilibrium constants are related by the equation K = K (RT) where R0.08206 L.atm/(K.mol). T is the absolute temperature, and An is the change in the number of moles of gas (sum moles products - sum moles reactants). For...
What is the law of mass action? Is it true that the value of K depends on the amounts of reactants and products mixed together initially? Explain. Is it true that reactions with large equilibrium constant values are very fast? Explain. There is only one value of the equilibrium constant for a particular system at a particular temperature, but there is an infinite number of equilibrium positions. Explain.
A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. The cylinder is also submerged in a large insulated water bath. (See sketch at right.) 1 atm pressure piston cylinder From previous experiments, this chemical reaction is known to release 368. kJ of energy water bath gases The...
Q1: The value of K, the equilibrium constant, is affected by which of the following (more than one answer could be acceptable)? reactant initial concentrations a) b) c) d) product initial concentrations the system temperature the nature of the reactants and products Explain your answer.