1. The problem statement, all variables and given/known data The specific heat of substance X is 200 J/g*C, how much heat is required to change the temperature of 2.0 kilograms of substance X from 40 degrees Celsius to 55 degrees Celsius? 2. Relevant equations Q=(m)(c)(change T) 3. The attempt at a solution 55 C-40 C= 15 C 2.0kg(1000 g/1 kg)= 2000 g (2000 g)(200 J/g*C)(15 C)= 6000000 J I'm am not sure if this is right at all. :uhh: Is it right?