Thermodynamicsdeals with equilibrium conditions. When changes are made it isassu

Question

Thermodynamicsdeals with equilibrium conditions. When changes are made it isassumed that the changes are made so slowly that the material isalmost in equilibrium at all times. The kinetic gas model isslightly different from normal thermodynamic theory and allows usto see the effect of non-equilibrium changes. The simulation scenario then goes : {       reset the model with"constant parameter" set to none. Reduce the volume of thecontainer so it is 5 nm wide. Add about 200 molecules. Increase thevolume of the container to its maximum as slowly as possibleand note the temperature decrease. Repeat the same experiment except increase the volume asquickly as possible. The temperature decrease should be less thanin the first case } The question is : ---- By thinking of molecules hittingthe moving wall try to explain why the two temperatures aredifferent even though they started at the same conditions and thefinal volume was the same in both cases? Thermodynamicsdeals with equilibrium conditions. When changes are made it isassumed that the changes are made so slowly that the material isalmost in equilibrium at all times. The kinetic gas model isslightly different from normal thermodynamic theory and allows usto see the effect of non-equilibrium changes. The simulation scenario then goes : {       reset the model with"constant parameter" set to none. Reduce the volume of thecontainer so it is 5 nm wide. Add about 200 molecules. Increase thevolume of the container to its maximum as slowly as possibleand note the temperature decrease. Repeat the same experiment except increase the volume asquickly as possible. The temperature decrease should be less thanin the first case } The question is : ---- By thinking of molecules hittingthe moving wall try to explain why the two temperatures aredifferent even though they started at the same conditions and thefinal volume was the same in both cases?

Explanation / Answer

Ans. if the volume increases, the rate of no of moleculeshitting the moving wall per unit surface decreases.         temparaturedecreases.        Now in first case wherevolume increases slowly as possible.        in this casetemparature can more dissipate into the environment.         Where as in 2ndcase, volume increases as quickly as possible.        in this case,temparature can less dissipate into the environment than the 1stcase.         twotemparatures are different even there are all sameconditions.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.