Problem 7 (填充題)
Three moles of helium are initially at \(20~^\circ\rm{C}\) and a pressure of 1 atm(=\(1.01 \times 10^5~\rm{Pa}\)). (a)Calculate the initial volumne of the helium gas. What is the work done by the gas if the volume is doubled (b) at constant pressure, or (c) isothermally?

提示：可將氦氣視為理想氣體，等溫過程所做的功的公式為:\(W=nRT \ln(\frac{V_f}{V_i})\)。 (03小題)

(a)the initial volume=____ \(\rm{m}^3\)
分數= 2  可嘗試次數= 5  相對誤差=0.05

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(b)work done at constant volume, \(W\)=_____ J
分數= 2  可嘗試次數= 5  相對誤差=0.05

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(c)work done at constant temperature, \(W\)=_____ J
分數= 2  可嘗試次數= 5  相對誤差=0.05

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