The conductivity of a sodium chloride NaCl solution is affected by both concentration and temperature. Conductivity is the measure of a solution's ability to conduct electric current, which depends on the concentration of ions in the solution and their mobility.1. Effect of concentration:As the concentration of NaCl in the solution increases, the number of ions Na+ and Cl- available to conduct electricity also increases. This leads to an increase in the conductivity of the solution. However, this relationship is not linear. At low concentrations, the increase in conductivity is almost proportional to the increase in concentration. But as the concentration increases further, the rate of increase in conductivity starts to decrease. This is because, at higher concentrations, the ions are more likely to interact with each other, which can reduce their overall mobility and limit the increase in conductivity.2. Effect of temperature:The conductivity of a NaCl solution also increases with an increase in temperature. This is because, as the temperature increases, the kinetic energy of the ions also increases, leading to faster movement and greater mobility. This results in a higher ability to conduct electric current. The relationship between temperature and conductivity is typically linear over a moderate temperature range. However, at very high temperatures, the effect of temperature on conductivity may become more complex due to changes in the solution's properties, such as viscosity and ion association.In summary, both concentration and temperature have a positive effect on the conductivity of a sodium chloride solution. The conductivity increases with an increase in concentration and temperature, but the relationship may not be linear, especially at high concentrations and temperatures.