Temperature
Temperature is a factor that can greatly impact the absorption of hydrgoel. Firstly, an increase in temperature means an increase in kinetic energy which in-trun means the fake urine will have a higher penetrating power, allowing it to enter the hydrogel more readily (van and Westerweel, 2008). Additionally the hydrogel itself will expand and thus further swell due to the increase in temperature, thus increasing its absorption power (van and Westerweel, 2008). Lastly, the increase in kinetic energy causes the viscosity or the resistance to the flow of a solvent to reduce, allowing a more steady absorption by the hydrogel. This will be done by increasing the temperature of the urine (below the boiling point) via a bunsen burner before addiing it to the hydrgoel.