This page explains equilibrium constants expressed in terms of partial pressures of gases, Kp. It covers an explanation of the terms mole fraction and partial pressure, and looks at Kp for both …
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Equilibrium Constant Kp Definition When a reaction is at equilibrium, the forward and reverse reaction rate are same. The concentration of the reactants and products stay constant at equilibrium, even though the forward and backward reactions are still occurring. When one or more of the reactants or products are gas in any equilibrium reaction, the ... Read more
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Definition of equilibrium constant Kp for gas phase reactions, and how to calculate Kp from Kc.
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The equilibrium constant of a chemical reaction (usually denoted by the symbol K) provides insight into the relationship between the products and reactants when a chemical reaction reaches equilibrium. Learn about Kc and Kp here.
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The equilibrium constant of a chemical reaction (usually denoted by the symbol K) provides insight into the relationship between the products and reactants when a chemical reaction reaches equilibrium. Learn about Kc and Kp here.
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The equilibrium constant of a chemical reaction (usually denoted by the symbol K) provides insight into the relationship between the products and reactants when a chemical reaction reaches equilibrium. Learn about Kc and Kp here.
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The equilibrium constant of a chemical reaction (usually denoted by the symbol K) provides insight into the relationship between the products and reactants when a chemical reaction reaches equilibrium. Learn about Kc and Kp here.
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The equilibrium constant of a chemical reaction (usually denoted by the symbol K) provides insight into the relationship between the products and reactants when a chemical reaction reaches equilibrium. Learn about Kc and Kp here.
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Equilibrium Constant Kp: ✓ Equation ✓ Expression ✓ Reaction ✓ Properties ✓ How to Calculate ✓ StudySmarter Original
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K_P is the equilibrium constant conventionally used to describe gas-phase reactions in which both products and reactants are generated simultaneously. Conventionally, it is reported in implied units of atm. It is used in a mass action expression to determine equilibrium partial pressures. Here is a nice example... 1"NH"_4"Cl"(s) rightleftharpoons color(red)(1)"NH"_3(g) + color(red)(1)"HCl"(g) "I"" "-" "" "" "" "" "0" "" "" "0 "C"" "-" "" "" "" "+P_i" "+P_i "E"" "-" "" "" "" "color(white)(//.)P_i" "" "P_i In this case, we see a solid goes into the expression as bb1, because its standard concentration is equal to its molar density. (It has nothing to do with coefficients.) I have purposefully highlighted the coefficients, as they become the exponent for gaseous reactants. The mass action expression is therefore: K_P = ((P_(NH_3))^color(red)(1)(P_(HCl))^color(red)(1))/1 But since the coefficients for both products are the same, P_(NH_3) = P_(HCl). Thus, both exponents are the same as well. As a result, if the K_P at a certain temperature is 6.25, then 6.25 = P_(NH_3)P_(HCl) = P_i^2 So, the partial pressures at equilibrium are each: => P_i = P_(NH_3) = P_(HCl) = sqrt(6.25) = ul"2.5 atm" CHALLENGE: What is the total pressure at equilibrium? HINT: What is Dalton's law?
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Time-saving video by Brightstorm on Tips for Converting to Kp from Kc
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You are watching: Top 15+ What Is Kp In Chemistry
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