Final answer:
The energy required for a given mass and temperature change is calculated using specific heat capacity, which differs from Einstein's mass-energy equivalence equation E = mc².
Step-by-step explanation:
When given mass and a temperature change, one can calculate the energy required for that change using the concept of specific heat capacity. This is different from the mass-energy equivalence represented by Einstein's famous E = mc² formula, which describes how mass can be converted into energy. For practical examples such as heating an object, different formulas are used. An example can be seen when calculating the amount of energy to heat a mass. If we want to heat a 30 kg object by 8°C, we multiply the mass by the specific heat capacity and the temperature change to get the required energy, as shown in Example 6.2.2 which results in 240 kJ. This calculation, although it scales with mass and temperature, does not involve the conversion of mass directly to energy.