The equation for the thermite reaction is shown below. When 2.7 g of aluminum is reacted with excess iron(III) oxide, 42.6 kJ are released. What is the enthalpy change for the reaction?\[ \text{Fe}_2\text{O}_3(s) + 2 \text{Al}(s) \rightarrow \text{Al}_2\text{O}_3(s) + 2 \text{Fe}(s) \]a. -430 kJ b. -850 kJ c. -4.3 kJ d. -8.50 kJ

The reaction is as follows: The mass of Al reacting, = 2.7 g. The energy released during the…

Answered: 18. The equation for the thermite…

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 5.39QE

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18. The equation for the thermite reaction is shown below. When 2.7 g of aluminum is reacted with excess iron(III) oxide, 42.6 kJ are released. What is the enthalpy change for the reaction? Fe2O3(s) + 2 Al(s) Al2O3(s) + 2 Fe(s) a. -430 kJ b. -850 kJ c. -4.3 kJ d. -8.50 kJ