How do you find final internal energy?
Since the system has constant volume (V=0) the term -PV=0 and work is equal to zero. Thus, in the equation U=q+w w=0 and U=q. The internal energy is equal to the heat of the system. The surrounding heat increases, so the heat of the system decreases because heat is not created nor destroyed.
How does volume affect internal energy?
1. The heat given off or absorbed when a reaction is run at constant volume is equal to the change in the internal energy of the system. 2. The heat given off or absorbed when a reaction is run at constant pressure is equal to the change in the enthalpy of the system.
What are the conditions for isothermal process?
Essential conditions for isothermal process are: i) The container should be perfectly conducting to the surroundings. ii) The process must be carried out very slowly so that there is sufficient time for exchange of heat with the surroundings so that temperature remains constant.