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Ch.15 - Chemical Equilibrium
McMurry - Chemistry 8th Edition
McMurry8th EditionChemistryISBN: 9781292336145당신이 사용하는 게 아니라요?교과서 변경
모든 교과서McMurry 8th EditionCh.15 - Chemical Equilibrium문제 15.63a
15장, 문제 15.63a

The reaction
2 PH31g2 + As21g2 ∆ 2 AsH31g2 + P21g2
has Kp = 2.9 * 10-5 at 873 K. At the same temperature,
what is Kp for each of the following reactions?
(a) 2 AsH31g2 + P21g2 ∆ 2 PH31g2 + As21g2

검증된 단계별 안내
1
Identify the relationship between the given reaction and the new reaction. The new reaction is the reverse of the given reaction.
Recall that the equilibrium constant for the reverse reaction is the inverse of the equilibrium constant for the forward reaction.
Write the expression for the equilibrium constant of the reverse reaction: Kp' = 1/Kp.
Substitute the given value of Kp for the forward reaction into the expression for Kp' to find the equilibrium constant for the reverse reaction.
Calculate Kp' using the value Kp = 2.9 * 10^-5.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
3m

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Equilibrium Constant (Kp)

The equilibrium constant, Kp, is a numerical value that expresses the ratio of the concentrations of products to reactants at equilibrium for a given reaction, with each concentration raised to the power of its coefficient in the balanced equation. It is specific to a particular temperature and provides insight into the extent of a reaction. A larger Kp indicates a greater concentration of products at equilibrium, while a smaller Kp suggests a higher concentration of reactants.
추천 영상:
가이드 코스
03:20
Equilibrium Constant Expressions

Reaction Quotient (Q)

The reaction quotient, Q, is a measure of the relative amounts of products and reactants present in a reaction at any point in time, not just at equilibrium. It is calculated using the same formula as Kp but with the current concentrations. Comparing Q to Kp helps predict the direction in which a reaction will proceed to reach equilibrium: if Q < Kp, the reaction will shift to the right (toward products), and if Q > Kp, it will shift to the left (toward reactants).
추천 영상:
가이드 코스
00:49
Reaction Quotient Q

Le Chatelier's Principle

Le Chatelier's Principle states that if a dynamic equilibrium is disturbed by changing the conditions, the system will adjust itself to counteract the change and restore a new equilibrium. This principle can be applied to predict how changes in concentration, pressure, or temperature will affect the position of equilibrium in a chemical reaction. Understanding this principle is crucial for manipulating reactions and predicting the effects of changes on Kp.
추천 영상:
가이드 코스
07:32
Le Chatelier's Principle
관련 실천
교과서 질문

If Kc = 7.5×10−9 at 1000 K for the reaction N2(g) + O2(g) → 2 NO(g), give the value of Kc at 1000 K for the reaction

(a) 2 NO(g) → N2(g) + O2(g)

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교과서 질문

If Kc = 7.5×10−9 at 1000 K for the reaction N2(g) + O2(g) → 2 NO(g), give the value of Kc at 1000 K for the reaction

(b) NO(g) → 1/2 N2(g) + 1/2 O2(g)

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교과서 질문

The reaction 2 AsH31g2 ∆ As21g2 + 3 H21g2 has Kp =

7.2 * 107 at 1073 K. At the same temperature, what is Kp

for each of the following reactions?

(b) 4 AsH31g2 ∆ 2 As21g2 + 6 H21g2

102
views
교과서 질문

The reaction 2 AsH31g2 ∆ As21g2 + 3 H21g2 has Kp =

7.2 * 107 at 1073 K. At the same temperature, what is Kp

for each of the following reactions?

(c) 9 H21g2 + 3 As21g2 ∆ 6 AsH31g2

98
views
교과서 질문

Calculate the value of the equilibrium constant for the reaction 4 NH31g2 + 3 O21g2 ∆ 2 N21g2 + 6 H2O1g2

given the following equilibrium constants at a certain temperature.

2 H21g2 + O21g2 ∆ 2 H2O1g2 Kc = 3.2 * 1081

N21g2 + 3 H21g2 ∆ 2 NH31g2 Kc = 3.5 * 108

127
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