(A) Dinitrogen pentoxide, N 2 O 5 , is a solid with a high vapor pressure. Its...

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(A) Dinitrogen pentoxide, N2O5, is a solid with a high vapor pressure. Its vapor pressure at 7.5 °C is 100 mmHg, and the solid sublimes at a pressure of 1.00 atm at 32.4 °C. What is ΔrG° 25 °C for the reaction N2O5(s) → N2O5(g)?

(B) A plausible reaction for the production of ethylene glycol (used as antifreeze) is

2 CO(g) + 3H(g)  CH(OH)CHOH(1)

The following thermodynamic properties of CH2(OH)CH2OH(l) at 25 °C are given: ΔfH° = -454.8 kJ mol-1 and ΔfG° = -323.1 kJ mol-1. Use these data, together with values, to obtain a value of S°, the standard molar entropy of CH2(OH)CH2OH(l) at 25 °C.

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General Chemistry Principles And Modern Applications

ISBN: 9780132931281

11th Edition

Authors: Ralph Petrucci, Jeffry Madura, F. Herring, Carey Bissonnette

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