50 Given th e equation representing a reaction at equilibrium:$$ H _ { 2 } S ( a q ) + C H _ { 3 } N H _ { 2 } ( a q ) \rightleftharpoons H S ^ { - } ( a q ) + C H _ { 3 } N H _ { 3 } ^ { + } ( a q ) $$According to on e acid-bas e ...
23 For a reaction at equilibrium, which change can increase the rates of the forward and reverse reactions?(3)(1) a decrease in the concentration of the reactants(2) a decrease in the surface are a of the products(3) an increase in the temperature of the system(4) an increase in th...
Chemical Equilibrium State for a chemical reaction where the reaction stops BEFORE all of the limiting reactant has. Chapter 15; CHEMICAL EQUILIBRIUM 14 | 1 Describing Chemical Equilibrium Chemical Equilibrium—A Dynamic Equilibrium The Equilibrium Constant Heterogeneous. Equilibrium. Ammonia N 2 + 3H 2...
A reaction has an equilibrium constant of {eq}6.0 \times 10^3 {/eq} at 298 K. At 666 K, the equilibrium constant is 0.31. Find {eq}\Delta H_{rxn}^\circ {/eq} for the reaction. Enthalpy of Reaction With given the...
The rate constant of a reaction is 3.2×10–4 at 280 K, what will be its value at 300 K approximately? View Solution The equilibrium constant of a reaction is 20.0. At equilibrium, the reate constant of forward reaction is 10.0. The rate constant for backward reaction is : View Solutio...
When a catalyst is added to a reaction at equilibrium, it ___ the equilibrium position. A. shifts B. changes C. does not change D. destroys 相关知识点: 试题来源: 解析 C。催化剂只能改变反应速率,不能改变平衡位置。选项 A“shifts”和选项 B“changes”都错误;选项 D“destroys”破坏也不...
When a catalyst is added to a reaction at equilibrium, what happens to the equilibrium position? A. Shifts to the right B. Shifts to the left C. No change D. Can't determine 相关知识点: 试题来源: 解析 C。解析:催化剂只能改变反应速率,不能改变平衡状态,所以平衡位置不变。
Equilibrium for a general reactiong) N
2)计算带入的是at equilibrium时物质的浓度或压强。引导学生用ICE table,把需要用于计算的量清晰地表达出来。 3)计算Kc时,不溶于水的物质与水出现在化学方程式如何处理。 对于水的处理: 在应用平衡常数表达式时,稀溶液中的水分子浓度可不写。因为稀溶液的密度接近于1 g/mL。水的物质的量浓度为55.6 mol/L。在...
at -> in