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137. Solving a chemistry problem
92. Calculate the change in entropy ∆S ° under standard conditions for the reactions: 2C2H5C1 2Na = C4H10 2NaCI, 2CH3OH = CH3-O-CH3 Н20 (l), С2Н5ОН СНзСООН = Н3СООС2Н5 Н20 (g).
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