Ah, just did this in physical chemistry class yesterday. For isothermal expansion, work done \( W = -nRT \ln\left(\frac{V_f}{V_i}\right) \), so plug in 2 for n, R as 8.314, your T and volume ratio. But honestly, the formula feels easier than my life’s math—like calculating if Ma’s saved egg money can cover both the car’s rattling fix *and* Didi’s practical notebook. Theory gussies it up, but real work is always done against some silent friction, hoi na?
#exams#study
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