1.30度C定温下，一理想气体由最初压力2.50atm及体积3.00L
膨胀至最终压力1.50atm及体积5.00L，试计算气体所做最大功．
Ans:-0.388J
这一题我的算法是W=-PΔV=-1.5*2*101.32=303.96J，请问是不是答案问题?
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2.A sample of an ideal gas is expanded reversibly at a constant temperature of
25度C from an initial pressure of 4.00atm and a volume of 250.0ml to a final
pressure of 1.00atm. Caculate W.
Ans:W=-140J
这题好像是等温可逆膨胀，所以我用W=-nRTIn(V2/V1)但题目没给n?
所以我用W=-PΔV=-1*(4.0.25/1-0.25)=-0.75*101.32=75.99J
感谢各位看完我的问题，还请各位赐教