Skip to main content
Ch.15 - Chemical Kinetics
Tro - Chemistry: A Molecular Approach 6th Edition
Tro6th EditionChemistry: A Molecular ApproachISBN: 9780137832217Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoTro 6th EditionCh.15 - Chemical KineticsProblema 29b
Capitolo 15, Problema 29b

For the reaction 2 A(gg) + B(g) → 3 C(g), b. when A is decreasing at a rate of 0.200 M/s, how fast is B decreasing? How fast is C increasing?

Guida verificata passo dopo passo
1
Identify the stoichiometry of the reaction: 2 A(g) + B(g) → 3 C(g).
Use the rate of disappearance of A to find the rate of disappearance of B. Since the stoichiometry between A and B is 2:1, the rate of disappearance of B is half the rate of disappearance of A.
Calculate the rate of disappearance of B using the relationship: rate of disappearance of B = (1/2) * rate of disappearance of A.
Use the rate of disappearance of A to find the rate of appearance of C. Since the stoichiometry between A and C is 2:3, the rate of appearance of C is (3/2) times the rate of disappearance of A.
Calculate the rate of appearance of C using the relationship: rate of appearance of C = (3/2) * rate of disappearance of A.

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
4m

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Stoichiometry

Stoichiometry is the branch of chemistry that deals with the quantitative relationships between the reactants and products in a chemical reaction. It is based on the balanced chemical equation, which provides the mole ratios needed to relate the amounts of substances consumed and produced. In this case, the coefficients in the equation indicate how the rates of change of A, B, and C are related.
Video consigliato:
Percorso guidato
01:16
Stoichiometry Concept

Rate of Reaction

The rate of reaction refers to the speed at which reactants are converted into products in a chemical reaction. It can be expressed in terms of the change in concentration of a reactant or product over time. For the given reaction, understanding how the rate of decrease of A affects the rates of B and C is crucial for determining their respective changes in concentration.
Video consigliato:
Percorso guidato
02:03
Average Rate of Reaction

Concentration Change

Concentration change describes how the concentration of a substance in a reaction varies over time. In this context, it is important to relate the rate at which A is decreasing to the rates at which B is decreasing and C is increasing. Using the stoichiometric coefficients, one can calculate these rates based on the known rate of change of A.
Video consigliato:
Percorso guidato
01:53
Chemical Changes
Pratica correlata
Domanda del libro di testo

Consider the reaction: 8 H2S(g) + 4 O2(g) → 8 H2O(g) + S8(g) Complete the table.

1254
views
Domanda del libro di testo

Consider the reaction: 2 N2O( g) → 2 N2(g) + O2(g) a. Express the rate of the reaction in terms of the change in concentration of each of the reactants and products.

3067
views
Domanda del libro di testo

Consider the reaction:

2 HBr (g) → H2 (g) + Br2 (g)

c. If the volume of the reaction vessel in part b was 1.25 L, what amount of Br2 (in moles) was formed during the first 15.0 s of the reaction?

1
views
Domanda del libro di testo

For the reaction 2 A(g) + B(g) → 3 C(g), a. Determine the expression for the rate of the reaction in terms of the change in concentration of each of the reactants and products.

2263
views
3
rank