If Kp and Kc have the same values then Δn will be:
Correct answer: C. Zero.
- A. Maximum
- B. Minimum
- C. Zero.
- D. Negligible
Explanation
Kp equals Kc times RT to the Δn. Kp is the equilibrium constant. Temperature, just like in all gas laws, needs to be in Kelvin and An stands for change in moles of gas. Ko And Kc are the equilibrium constant of an ideal gaseous mixture. Kp is the equilibrium constant used when equilibrium concentrations are expressed in atmospheric pressure and Kc is the equilibrium constant used when equilibrium concentrations are expressed in molarity. 2A(g)+B(g) = 2C(g) All in the gas phase. The general expression: Kp = Kc(RT) Δn can be derived where An = moles of gaseous products - moles of gaseous reactants.
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A reversible reaction proceeds in both forward and backward directions, so reactants and products continue changing until dynamic equilibrium is established. The topic covers the meaning of equilibrium, the equality of forward and reverse rates, and how concentration, pressure and temperature disturb equilibrium, which is separate from the rate at which equilibrium is reached.
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