How much energy is required to raise the temperature of 10.0 grams of granite from 20C to 50C?

To calculate the energy required to raise the temperature of 10.0 grams of granite from 20°C to 50°C, we can use the formula ( Q = mc\Delta T ), where ( Q ) is the heat energy, ( m ) is the mass, ( c ) is the specific heat capacity, and ( \Delta T ) is the change in temperature. The specific heat capacity of granite is approximately 0.79 J/g°C. Thus, ( Q = 10.0 , \text{g} \times 0.79 , \text{J/g°C} \times (50°C - 20°C) = 10.0 \times 0.79 \times 30 = 237 , \text{J} ). Therefore, about 237 joules of energy is required.