O Level Pure/IP Chemistry: Enthalpy Changes of Physical Processes 

#seanchuachemistry #olevelchemistry #ipchemistry
In this video, Mr Sean Chua, Chemistry Specialist of more than 20 years of teaching experience, highlights to his weekly Sec 4 GCE O-level Pure Chemistry lessons in Winners Education Centre, on the Enthalpy Changes of Physical Processes.
Physical processes includes: Melting, Boiling, Evaporation, Sublimation, Freezing etc.
The main concept here is that if the process absorbs heat then it is an endothermic process(eg. boiling). If the process loses heat , then it is an exothermic process(eg.freezing)!
Master the basic concepts with Mr Chua!
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