Considerations. Each chocolate-covered espresso bean contains 5 milligrams of caffeine, a stimulant that elevates your heart rate and blood pressure. Overconsumption of caffeine can lead to nausea, vomiting, tremors, restlessness and difficulty sleeping.
A pH of about 7 is the optimum and as the pH moves further away from the optimum pH the enzyme activity starts to slow down. Every enzyme shows highest activity at a specific temperature which is called the optimum temperature. The rate of reaction above or below this temperature is slower. Increasing the temperature causes the frequency of collisions to increase as the molecules move faster when the heat is supplied.
Temperature Effects on Phase. If pressure is constant, the state of a substance will depend entirely on the temperature it is exposed to. For this reason, ice melts if taken out of a freezer and water boils out of a pot if left at too high a temperature for too long.he point at which matter subjected to a particular temperature under conditions of constant pressure begins to change its phase is called the phase change threshold. At this temperature, every bit of the substance exposed to the heat will change its state.