The initial concentration of a reactant in a first order reaction is 0.860 M. What will be its concentration after 4 half-lives have passed?

Q: e following chemical reaction: A → products shows first order kinetics with respect to A; rate =…

A: k = 0.41 x 10-4 s-1 Initial concentration of A = 0.71 mol L-1 1st order reaction

Q: Without doing a calculation, predict whether the entropy change will be positive or negative when…

A: A decrease in the number of moles on the product side means lower entropy. An increase in the number…

Q: The reaction: A → products can be described by a zero-order rate law. a) Derive the relationship…

A: The key concept here is the concentration profile in a zero-order reaction, where the concentration…

Q: A catalyst decreases the activation energy of a particular exothermic reaction by 35 kJ/mol, to 38…

A: Activation energy of the catalysed reaction, Ea(C) = 38 kJ/mol Decrease in the activation energy…

Q: 2. I have a reaction which uses gas phase reactants, but produces liquid products. It is conducted…

A: To find the fractional conversion of the limiting reactant, we need to determine which reactant is…

Q: The plots below were taken from the same reaction at different temperatures. The left plot was at…

A: The given plots for a reaction at 81°C and 25°C are:

Q: 1. A parallel reaction system looks like the following: 2 A S R In the above reaction system, R is…

A: A parallel reaction is carried out in a CFTSR.

Q: Consider the reaction: 20;(8) - 302(8) The rate law for this reaction is: Rate = k [0] Suppose that…

A: The fraction of ozone reacted when the rate falls to one-half of the initial value is to be…

Q: The conversion of A to R occurs via the following reaction. AzR; The equilibrium constant is…

A:

Q: Draw a reaction progress diagram for a reaction with a free energy of reaction of 5.00 kJ/mol and an…

A: Given: Free energy of the reaction, ΔG = 5.00 kJ/mol Activation energy of the reaction, ΔE = 5.00…

Q: write an expression for the overall reaction rate, r, in terms of the rate step 3, r3 2. using the…

A:

Q: The complex reaction A=II takes place with the mechanism of successive reactions: k₂ A k₁ E II with…

A: Rate constant for for A to E = 2*10-3 s-1 Rate constant for second reaction = 4*10–3 s-1 Initial…

Q: 6. The decomposition of hydrogen peroxide is first order with respect to H₂O2. 2 H₂O2(1)→ 2 H₂O(l) +…

A: Given reaction is- 2H2O2l→2H2O(l)+ O2(g) For this reaction rate expression is- r=k[H2O2] Rate…

Q: question 3 in imageee

A:

Q: The reaction of CO(g) with NO2 (9) is second-order in NO2 and zero-order in CO at temperatures less…

A:

Q: Assume that a bimolecular, irreversible reaction A + B → C takes place at steady state in a liquid…

A: Use the steady-state approximation for solving the mass balance equations for species The…

Q: An organic chemistry student graphed the data from an oxidation "breathalyzer" analysis. Determine…

A:

Q: A 2.50 L reaction vessel contains an equilibrium mixture of 7.3 atm SO3, 2.4 atm SO2, and 1.2 atm O2…

A: Given: The volume of the reaction vessel, V = 2.50 L The partial pressure of SO3, PSO3 = 7.3 atm The…