Board, Chemistry, Questions, Paper.
state: crystalline and amorphous solids, types of crystals, unit cell Chapter 6: Thermodynamics ➭ System, surroundings, types of systems (open, closed, isolated) ➭ First law of thermodynamics: internal energy, work, heat ➭ Enthalpy (H) and its calculations ➭ Hess’s law of constant heat summation ➭