A total of 2.00 of a compound is allowed to react in a foam coffee cup that contains 164 g of water. The reaction caused the temperature of the water...

A total of 2.00 of a compound is allowed to react in a foam coffee cup that contains 164 g of water. The reaction caused the temperature of the water to rise from 21.0 degrees Celsius to 24.7 degrees Celsius. What is the enthalpy of this reaction? Assume that no heat is lost to the surroundings or to the coffee cup itself.