This principle is vitally important to understanding the behaviour of a quantity closely related to energy, called entropy. Entropy is a measure of evenness of a distribution of energy between parts of a system. When an isolated system is given more degrees of freedom (i.e., given new available energy states that are the same as existing states), then total energy spreads over all available degrees equally without distinction between "new" and "old" degrees. This mathematical result is called the second law of thermodynamics.
శక్తి (energy) కి దగ్గరగా సంబంధం ఉన్న పరిమాణం (quantity) యొక్క ప్రవర్తనను అర్థం చేసుకోవడానికి ముఖ్యమైన సూత్రం ఏమిటి?
entropy