[kimisizer]

Out of these factors, which ones change the value of K?
Volume
Pressure
Temperature
Initial concentration
Chemical equation

This was from an online review and they only gave a number (2) but I thought it was 3: Temperature, volume and pressure. Doesn't changing volume also change pressure thereby changing k, leading to a change in K?

[opti384]

K is only affected by temperature.

[kimisizer]

K is only affected by temperature.

Actually, pressure also affects K because if pressure was increased, the reaction would shift to the side with less molecules until equilibrium is reached.

[opti384]

Actually, pressure also affects K because if pressure was increased, the reaction would shift to the side with less molecules until equilibrium is reached.

And why do you think like that?

[DevaDevil]

K is indeed Temp dependent (van ;t Hoff relation)

K_p is also pressure dependent (in case of non-ideal gas / non gaseous matter)

Actually, pressure also affects K because if pressure was increased, the reaction would shift to the side with less molecules until equilibrium is reached.

this is not a change in K_p, but a change in reactant and product mixture (le Chatelier's principle)

[AMEDIO]

K depends only on temp.