A solution was made by dissolving a spatula of potassium nitrate into 50 cm 3 of water. The temperature changed from 20.4ËšC to 18.7ËšC. Calculate the enthalpy change for this reaction. To calculate the ...
Energy is required to break a covalent bond between two atoms to overcome the attractive force. Bond breaking is an endothermic process. The opposite is true if we want to make new bonds. Energy is ...