WebApr 5, 2024 · Air conditioners or AC and refrigerators are devices that are supposed to transfer heat from a cool space to its hot surroundings. But in both cases, they need … WebThis inequality when rearranged becomes: $$TdS-dq\ge0$$ For constant volume or pressure it becomes (recall $q_v=U,q_p=H$): $$TdS-U\ge0\\TdS-H\ge0$$ both of which say the common equations, (for a spontaneous change): $$dA=U-TdS\le0\\dG=H-TdS\le0$$ Share Improve this answer Follow answered Nov 20, 2014 at 12:00 RE60K 3,838 3 20 …
EngArc - L - Inequality of Clausius - Engineering Archives
WebMar 20, 2024 · Clausius Inequality Question 1 Detailed Solution Concept: Clausius inequality states that ∮ d Q T ≤ 0 It provides the criteria for the reversibility of a cycle. If ∮ d Q T = 0, the cycle is reversible, ∮ d Q T < 0, the cycle is irreversible and possible ∮ d Q T > 0, The cycle is impossible The Clausius theorem (1855), also known as the Clausius inequality, states that for a thermodynamic system (e.g. heat engine or heat pump) exchanging heat with external thermal reservoirs and undergoing a thermodynamic cycle, the following inequality holds. where is the total entropy change in the external thermal reservoirs (surroundin… prostate shock wave therapy
Clausius theorem - Wikipedia
WebApr 7, 2024 · Thus, the observation that heat never flows spontaneously from a colder region to a hotter region (the Clausius form of the second law of thermodynamics) is equivalent to requiring the net entropy change to be positive for a spontaneous flow of heat. If T1 = T2, then the reservoirs are in equilibrium and Δ S = 0. Web0:00:10 - Comments on homework0:01:25 - Reminders about second law of thermodynamics and Carnot cycles0:03:27 - Example: Performance of heat … WebFeb 24, 2024 · Feb 25, 2024 at 0:47. The Clausius inequality represents a mathematical statement of the 2nd law of thermodynamics, applicable to closed systems (no mass entering or leaving, but exchange of heat … prostate shop