# The temperature of 50 g of water is 70 degrees Celsius. How much heat must be added to raise the temperature?

"The temperature of 50 g of water is 70 degrees Celsius. How much heat must be added to raise the temperature to 80 degrees Celsius?

A. 540 cal

B. 10 cal

C. 200 cal

D. 500 cal

E. 80 cal"