الدرس (٤)-ب: التنبؤ بدرجة الحرارة التي تجعل التفاعل تلقائي أو غير تلقائي

In this lesson, we will explore the concept of spontaneity in chemical reactions and how to predict it based on temperature. We will explain the relationship between Gibbs free energy change (ΔG), enthalpy change (ΔH), and entropy change (ΔS), focusing on the fundamental equation: ΔG = ΔH - TΔS We will examine the different cases in which a reaction is spontaneous or non-spontaneous, and how temperature influences this behavior. Additionally, we will go through practical examples to help you understand when a reaction becomes spontaneous at low or high temperatures, and when it is never spontaneous.ّ