Which of the following factors affect the stability of a colloid?
Temperature
pH
Concentration of dispersed phase particles
All of the above
The stability of a colloid depends on various factors such as temperature, pH, and concentration of dispersed phase particles. A change in any of these factors can cause the particles to either aggregate or coagulate, leading to the instability of the colloid. For example, an increase in temperature can cause the particles to move faster and collide with each other, leading to coagulation. Similarly, a change in pH can affect the surface charge on the particles, which can either stabilize or destabilize the colloid.