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19 Nov 2019
Thermodynamics
5. A constant-volume insulated container, initially at 25°C, contains 0.1 mol of CO(g) and 0.05 mol of O2(g). The gases explode, and 0.1 mol of CO2(g) is produced. The heat capacity of the container and its con tents is 103 J/K. Assume that the gases are ideal, and that the standard heats of formation at 25°C of CO(g) and CO2(g) are -110.5 kJ/mol and-393.5 kJ/mol, respectively. Find Î17, ÎT, and ÎH for the sys- tem. Hint: Explosion happens instantaneously. So, first consider it as an idealized isothermal reaction happening at constant volume. This way you will find amount of heat released. Then return to consideration of actual given conditions under which temperature of the reaction vessel increases while volume of the vessel remains constant.
Thermodynamics
5. A constant-volume insulated container, initially at 25°C, contains 0.1 mol of CO(g) and 0.05 mol of O2(g). The gases explode, and 0.1 mol of CO2(g) is produced. The heat capacity of the container and its con tents is 103 J/K. Assume that the gases are ideal, and that the standard heats of formation at 25°C of CO(g) and CO2(g) are -110.5 kJ/mol and-393.5 kJ/mol, respectively. Find Î17, ÎT, and ÎH for the sys- tem. Hint: Explosion happens instantaneously. So, first consider it as an idealized isothermal reaction happening at constant volume. This way you will find amount of heat released. Then return to consideration of actual given conditions under which temperature of the reaction vessel increases while volume of the vessel remains constant.
Nestor RutherfordLv2
22 Oct 2019