PHYS 2 Chapter Notes - Chapter 19.5 - 19.8: Free Expansion, Isochoric Process, Internal Energy
Document Summary
Special case when temperature is constant --> internal energy is constant. Internal energy of an ideal gas depends only on its temperature, not on its pressure or volume. For nonideal gases, some temperature change occurs during free expansion. Free expansion of gas is usually accompanied by a drop in temperature. 19. 7 heat capacities of an ideal gas heating volume conditions. In constant-pressure temperature increase, the volume must increase and does work usually carried out under constant atmospheric pressure. In constant-volume temperature increase, the system does no work. Molar heat capacity = heat capacity of a gas measured in a closed container under constant- Molar heat capacity at constant pressure = heat capacity measurements for solids/liquids are. Water (between and ) is one of the few substances for which the volume decreases during. = molar heat capacity at constant volume: = gas constant. For an ideal gas, internal energy change in any process is given by whether the.
