The specific heat capacity of a pure substance can be found by dividing the heat needed to change the temperature of a sample of the substance by the mass of the sample and by the change in temperature. The heat capacity of a certain substance has been measured to be 2.07. gJC, Suppose 170 . g of the substance are heated until the temperature of the sample has changed by 9.31C. Write an equation that will let you calculate the heat Q that was needed for this temperature change, Your equation should contain only symbols. Be sure you define each symbol