There's no set answer to how long the battery charge will last - it all depends on what you're doing with the tablet. Actions such as connecting to the internet, playing games or movies and other complex tasks will consume power faster than more simple tasks like writing emails or reading an ebook.
THE EFFECT OF CHANGING CONDITIONS IN ENZYME CATALYSIS This page looks at the effect of changing substrate concentration, temperature and pH on reactions involving enzymes. It follows on from a page describing in simple terms how enzymes function as catalysts.
Effect of Temperature on Reaction Rate of Amylase and Starch. Objectives. The main objective is to understand how an enzyme works, and how it functions under specific environmental conditions. (i.e. pH, temperature, concentration (enzyme/substrate). In this experiment we are studying how the temperature affects the rate of reaction of starch mixed with the amylase enzyme. Increase in kinetic energy, molecules bump into ea. Smaller likelihood that substrate, enzyme bump into ea.