2, the heat change of a sample of metal or water can be calculated from the mass, specific heat, and temperature change of the substance. This is indicated in Eq. 4 and Eq. 5. q metal = (mass of metal)(C p)(â T) (4) q water = (mass of water)(C p)(â T) (5) Substituting these equations into Eq.
Average is the number that is found by dividing the sum of data by the number of items in the data set.verage is the number that is found by dividing the sum of data by the number of items in the data set.
An arithmetic mean is a fancy term for what most people call an average.. When someone says the average of 10 and 20 is 15, they are referring to the arithmetic mean. The simplest formula for a mean is the following: Add up all the numbers you want to average, and then divide by the number of items you just added.