Interpretation:
The equilibrium constant
Concept introduction:
Equilibrium constant
In gas phase reactions, partial pressure is used to write equilibrium equation than molar concentration. Equilibrium constant
Consider the reaction where A reacts to give B.
On rearranging,
Where,
The pressure of each species of ideal gas and its molar concentration are directly proportional to each other.
In same way
Where,
R is gas constant
T is absolute temperature
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General Chemistry: Atoms First
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- Consider the equilibriumN2O4(g) ⇌ 2 NO2(g) ΔH° = 58.0 kJIn which direction will the equilibrium shift when (a) N2O4 is added, (b) NO2 is removed, (c) the pressure is increased by additionof N2(g), (d) the volume is increased, (e) the temperature is decreased?arrow_forward3. Consider the reaction: SO2Cl2(g)⇌SO2(g)+Cl2(g),SO2Cl2(g)⇌SO2(g)+Cl2(g), Kp Kp=2.91×103 at 298 KK In a reaction at equilibrium, the partial pressure of SO2SO2 is 0.135 torr and that of Cl2Cl2 is 0.370 torr. a. What is the partial pressure of CO2CL2 in this mixture? Express your answer in torr using three significant figures.arrow_forward2SO2(g)+O2(g)⇄2SO3(g)Kp≈2×105At a certain temperature, SO2(g) and O2(g) react to produce SO3(g) according to the chemical equation shown above. An evacuated rigid vessel is originally filled with SO2(g) and O2(g), each with a partial pressure of 1atm. Which of the following is closest to the partial pressure of O2(g) after the system has reached equilibrium, and why?a) 0atm; because Kp is very large, nearly all the SO2(g)and O2(g) are consumed before the system reaches equilibrium.b) 0.5atm; because Kp is very large, nearly all the SO2(g) is consumed before the system reaches equilibrium, but an excess amount of O2(g) remains at equilibrium.c) 1atm; because Kp is very large, the system is already near equilibrium, and there will be very little change to the partial pressure of O2(g).d) 1.5atm; because Kp is very large, the decomposition of any SO3(g) that forms increases the amount of O2(g) at equilibrium.arrow_forward
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- the equilibrium K is 3.5 x 10^8 at 25 degrees celcius for N2(g) +3H2(g) --> 2NH3(g). What is Delta G naughtarrow_forwardCarbon tetrachloride, an important industrial solvent, is prepared by the chlorination of methane at 850 K.CH4(g) + 4Cl2(g) ⟶ CCl4(g) + 4HCl(g)What is the equilibrium constant for the reaction at 850 K? Would the reaction vessel need to be heated or cooled to keep the temperature of the reaction constant?arrow_forwardSteam reforming of methane ( CH4 ) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. An industrial chemist studying this reaction fills a 1.5L flask with 3.6 atm of methane gas and 5.0 atm of water vapor, and when the mixture has come to equilibrium measures the partial pressure of carbon monoxide gas to be 2.2 atm .Calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. Round your answer to 2 significant digits.arrow_forward
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