suppose that the expansion is reversible but not isothermal and that the temperature decreases as the expansion proceeds. a)find an expression for the work when T=Ti-c(V-Vi) c= const b)is the work greater or smaller than for isothermal expansion explore the effect of the temperature dependence of the heat capacity on the internal energy. a)the heat capacity of a non-metallic solid at very low temperatures typically varies aT^3 a=const how does its internal energy vary? b)suppose that the molar energy of a substance over a limited temperature range can be expressed as a polynomial in T as U=a+bT^2+cT^3 find an expression for the const volume molar heat capacity at a temperatue T 感謝回答 --

※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 114.45.189.121