Entropy in Chemistry

Entropy in chemistry measures the degree of disorder or randomness in a system. When particles are more spread out, moving freely, or arranged in many possible configurations, entropy is high. Conversely, when particles are more ordered or fixed, entropy is low. It helps predict the direction of chemical reactions: processes tend to move toward increased entropy, favoring disorder. Think of melting ice; water molecules become more disorganized, increasing entropy. Entropy helps explain why some reactions happen naturally and how energy disperses during these processes.