I would say that U= Q+W equation is where W stands for work done on the gas. When work is done on the gas it increases the internal energy so +W being work done on the gas would make sense . Right?kuruman said:
Internal energy, also known as thermal energy, is the total energy of a system that is associated with the random movement of its particles. It includes the kinetic energy of the particles as well as their potential energy due to their positions and interactions with each other.
Internal energy and temperature are directly proportional. As the temperature of a system increases, the average kinetic energy of its particles also increases, resulting in an increase in internal energy.
Internal energy is a measure of the total energy of a system, while heat and work are forms of energy transfer. Heat is the transfer of energy due to a temperature difference, while work is the transfer of energy due to a force acting over a distance.
In a closed system, where no energy is exchanged with the surroundings, the total internal energy remains constant. This is known as the law of conservation of energy, which states that energy cannot be created or destroyed, only transferred or converted from one form to another.
Internal energy is a fundamental concept in thermodynamics, which is the study of energy and its transformations. It is used to understand and analyze the behavior of systems, such as gases and liquids, and to calculate quantities such as work, heat, and changes in temperature.
