Energy and Change of Temperature Specific Heat

15 Given three of the following quantities, calculate the fourth (a) energy change, (b) mass of a pure substance, (c) specific heat of the substance, (d) temperatme change, or initial and final temperatures. [Pg.444]

Let s look more closely at the algebraic sign of a change, a delta quantity. A A quantity is always calculated by subtracting the initial value from the final value. In this section we will work with a change in temperature, AT. By definition. [Pg.445]

Experiments indicate that the heat flow, q, in heating or cooling a substance is proportional to both the mass of the sample, m, and its temperature change, AT. Combining these proportionalities yields [Pg.445]

The units of c may be found by solving the equation for that quantity [Pg.445]

We therefore expect energy units divided by the product of mass units and temperature units. In this text, we will express values of c in J/g °C. You may also encounter J/g K in other sources. [Pg.445]

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