Chem

• POTENTIAL ENERGY Energy that associated with the relative position of an object.
• HEAT Flow of energy between two objects because of a difference in temperature.
• ENDOTHERMIC Flew of heat from surroundings to system.
• EXOTHERMIC Flow of heat from system to surroundings
• SPECIFIC HEAT It is the quantity of heat needed to raise the temperature of one gram of a substance by 1°C-
• HEAT CAPACITY It is the quantity of heat needed to raise the temperature of the system by 1°C-
• ENTHALPHY Amount of heat required to change gas into liquid
• STANDARD ENTHALPHY It is the heat change that results when one mole of a compound is formed from its elements at a pressure of 1 atm.
• CALORIMETRY Measurement of heat released or absorbed by a chemical reaction