How many joules of energy would be required to heat 15.9 g of carbon from 23.6°C to 54.2°C? (Specific heat capacity of carbon = 0.71 J/g·°C.)
E) none of these

Question

Quizplus · Accepted Answer

The formula for calculating heat energy is Q = m*c*ΔT, where Q is the heat energy, m is the mass of the substance, c is the specific heat capacity, and ΔT is the change in temperature.

Using this formula, we get:
Q = 15.9 g * 0.71 J/g·°C * (54.2°C - 23.6°C)
Q = 11,219.52 J

Therefore, the energy required to heat 15.9 g of carbon from 23.6°C to 54.2°C is 11,219.52 J, which is closest to option A.

How Many Joules of Energy Would Be Required to Heat