An ampoule with 290 mg N₂04 was introduced into a quartz vessel of volume 500.0 mL. The vessel was evacuated, and then the ampoule was smashed (its volume can be neglected). The gas pressure in the vessel was measured to be 161.0 mm Hg at 25 °C, and to be 181.0 mm Hg at 35 °C. Find deltaH (in kcal) for the dissociation of 1 mole of N204 at about 30 °C. The thermal expansion of the vessel, and the variation of deltaH with temperature are neglected.

An ampoule with 290 mg N₂04 was introduced into a quartz vessel of volume 500.0 mL. The vessel was evacuated, and then the ampoule was smashed (its volume can be neglected). The gas pressure in the vessel was measured to be 161.0 mm Hg at 25 °C, and to be 181.0 mm Hg at 35 °C. Find deltaH (in kcal) for the dissociation of 1 mole of N204 at about 30 °C. The thermal expansion of the vessel, and the variation of deltaH with temperature are neglected.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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