Here's the problem: A certain storm cloud has a potential difference of 1.00 X 10^8 V relative to a tree. If, during a lightning storm, 50.0 C of charge is transferred through this potential difference and 1.00% of the energy is absorbed by the tree, how much water (sap in the tree) initially at 30 degrees Celsius can be boiled away? Water has a specific heat of 4186 j /kg * degrees Celsius. It has a boiling point of 100 degrees Celsius, and a heat of vaporization of 2.26 X 10^6 J /kg I know that this problem has to do with Energy stored in a capacitor. Potential Difference = 1.00 X 10^8 C = e(o)(A / d) "I dont have an area or a distance so that wouldn't matter" I think what is throwing me off is the temperature included in this problem, for that matter, everything involving the water.