Relating Equilibrium Constants: Kp and Kc (Keq)

The video tutorial explains the relationship between KP and KEQ in physical chemistry, focusing on Gibbs free energy at equilibrium. It covers how to calculate KP and KC, the conversion process between them, and the calculation of Delta G at equilibrium. The tutorial uses a reaction example to illustrate these concepts and highlights the differences between KP and KEQ, especially when dealing with gases and pressures.

What does the 'P' in KP stand for in the context of equilibrium expressions?

• Partial

• Pressure

• Product

• Proportion

How is KP different from KEQ in terms of what it uses for calculations?

• KP uses concentrations, KEQ uses pressures

• KP uses partial pressures, KEQ uses concentrations

• KP uses moles, KEQ uses volumes

• KP uses total pressures, KEQ uses partial pressures

In the formula relating KP to KC, what does delta N represent?

• The change in pressure

• The change in temperature

• The change in concentration

• The change in the number of moles of gas

What is the ideal gas constant value used in the calculations?

• 6.314 joules per mole Kelvin

• 7.314 joules per mole Kelvin

• 9.314 joules per mole Kelvin

• 8.314 joules per mole Kelvin

What is the significance of a positive Delta G at equilibrium?

• The reaction is spontaneous

• The reaction is non-spontaneous

• The reaction is at equilibrium

• The reaction is exothermic

How does the difference in moles of gas between products and reactants affect KP and KEQ?

• It has no effect on KP and KEQ

• It can cause significant variation between KP and KEQ

• It causes KP to be larger than KEQ

• It makes KP and KEQ equal

What is the calculated KEQ at 400 Kelvin in scientific notation?

• 2.7 x 10^-7

• 3.0 x 10^-8

• 3.0 x 10^-7

• 2.7 x 10^-8