Several factors affect the adsorption process, including: - Surface Area: Larger surface areas provide more sites for adsorption. - Temperature: Higher temperatures can increase or decrease adsorption depending on whether the process is exothermic or endothermic. - Pressure: Higher pressures typically increase adsorption for gases. - Nature of Adsorbate and Adsorbent: Chemical properties such as polarity, molecular size, and functional groups play significant roles.