Question

At 1 atm butyric acid, C4H8O2, has a boiling point of 163.5°C and a melting point of -7.9°C. Predict the signs of AG, AH, AS and w for the process: C4H802 (1) ► C4H8O2 (g) at 147 °C - VAG + VAH + ✓ AS Submit Answer Incorrect. Tries 1/2 Previous Tries

Answer 1

Soln given equation Cu H GOR - - Culgog, at L47°C B.p. of Culgoa mp. of Cungoa - 163.5 c -7.9°c. Now, by the Data given we can Say that cu Hq oo will convert in gas at 168.5°C. but, we are converting it at 140°C so, Heat must be provided to it. gord TAHE tve) _ AH = tve also, & gas I will CHH8OR is converting into tired from liquid. So Entropy definately increase Lastve - Now, this reaction is de finately not Spontaneous as otherwise It's Boiling

I point would have been :14°C. so 1DG = tue decction not spontaneous Now In Chemistry If work is - done by gas than it is cropro - sented as - ve but - Here work is done by us sot w = tve so, signs - fan - Positive TAS - Positive DG . Positive - Positive

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