Calculate AH and AUf for the formation of silane, SiH4(g), from its elements at 298 K, if 250 cm³ of the gaseous com- pound at T = 298 K and P = 0.658 atm is burned in a constant-volume gas calorimeter in an excess of oxygen and causes the evolution of 9.757 kJ of heat. The combus- tion reaction is SiH,(g) + 2 O2(g)→ SiO2(s, quartz) + 2 H,O(€) and the formation of silane from its elements is Si(s) + 2 H2(g) - · SİH4(g)
Calculate AH and AUf for the formation of silane, SiH4(g), from its elements at 298 K, if 250 cm³ of the gaseous com- pound at T = 298 K and P = 0.658 atm is burned in a constant-volume gas calorimeter in an excess of oxygen and causes the evolution of 9.757 kJ of heat. The combus- tion reaction is SiH,(g) + 2 O2(g)→ SiO2(s, quartz) + 2 H,O(€) and the formation of silane from its elements is Si(s) + 2 H2(g) - · SİH4(g)
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 5.84QE
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