Potassium has a specific heat of 0.750 J/(g x °C). How much energy in Joules is needed to raise the temperature of 6.85 g of potassium by 30.8°C? Be sure to use correct sig figs and units.

Answer 1

Hi, Natalia! For this problem, you'll need to use q=mcΔT. Your mass is 6.85g, your specific heat is 0.750 J/g℃, and your delta T would be 30.8℃. Plug those in, and you should get the energy in Joules.