The adsorption of nitrogen gas on a solid surface is influenced by both temperature and pressure. The process of adsorption can be described using adsorption isotherms, such as the Langmuir or Freundlich isotherm, which relate the amount of gas adsorbed on the solid surface to the equilibrium pressure of the gas at a constant temperature. The effect of temperature and pressure on the adsorption of nitrogen gas can be understood through the following factors:1. Temperature: Adsorption is an exothermic process, meaning it releases heat. According to Le Chatelier's principle, increasing the temperature will shift the equilibrium in the direction that absorbs heat, which in this case is the desorption process opposite of adsorption . Therefore, as the temperature increases, the adsorption of nitrogen gas on the solid surface decreases. Conversely, decreasing the temperature will favor the adsorption process, leading to an increase in the amount of nitrogen gas adsorbed on the solid surface.2. Pressure: The adsorption of nitrogen gas on a solid surface is directly proportional to the pressure of the gas. As the pressure increases, the concentration of nitrogen gas molecules in the vicinity of the solid surface also increases, leading to a higher probability of adsorption. This results in an increase in the amount of nitrogen gas adsorbed on the solid surface. Conversely, as the pressure decreases, the concentration of nitrogen gas molecules near the solid surface decreases, leading to a lower probability of adsorption and a decrease in the amount of nitrogen gas adsorbed on the solid surface.In summary, the adsorption of nitrogen gas on a solid surface is favored by low temperatures and high pressures. However, it is important to note that the specific effects of temperature and pressure on adsorption may vary depending on the nature of the solid surface and the type of adsorption physisorption or chemisorption . Experimental data and adsorption isotherms can be used to determine the optimal conditions for nitrogen gas adsorption on a specific solid surface.