Pick the best answer/response

A) 323.4 J

wow the answer is C, by now I should know I can't rely on the automatic responses.

To calculate the energy required to raise the temperature of a substance, you can use the formula:

Energy = mass x specific heat x change in temperature

Given:
Specific heat = 0.215 J/g°C
Mass = 20 g
Change in temperature = 88°C - 72°C = 16°C

Plugging the values into the formula:

Energy = 20 g x 0.215 J/g°C x 16°C = 68.8 J

Therefore, the correct answer is C) 68.8 J.

The specific heat of a substance is a property that tells us how much energy is required to change the temperature of a certain amount of the substance by a certain amount. In this case, the specific heat of the substance is given as 0.215 J/g°C.

To calculate the amount of energy required to raise the temperature of the substance from 72°C to 88°C, we can use the following formula:

Energy = mass × specific heat × change in temperature

Given that the mass of the substance is 20 g, the specific heat is 0.215 J/g°C, and the change in temperature is (88°C - 72°C) = 16°C, we can substitute these values into the formula:

Energy = 20 g × 0.215 J/g°C × 16°C = 68.8 J

Therefore, the correct response is:

C) 68.8 J