Answer all questions with detailed answers on paper. a) Hydrogen gas burns in air to form water. 2 H2(g) + O2(g) --> 2 H2O(l) ΔН = -527 kJ Calculate heat energy is given off when 10.0 kg of hydrogen gas in a rocket is burnt in excess oxygen. b) Aluminum is used to reduce iron (IlI) oxide to iron in the Thermite reaction. Calculate the enthalpy change when 1 mol iron (III) oxide is reduced by 2.0 mol aluminum. [Given; ΔH°f = -1676 kJ/mol: ΔH°f = -825.3 kJ/ mol] 2 AI(s) + F2O3(s) --> 2 Fe(s) + Al2O3(s)
Answer all questions with detailed answers on paper. a) Hydrogen gas burns in air to form water. 2 H2(g) + O2(g) --> 2 H2O(l) ΔН = -527 kJ Calculate heat energy is given off when 10.0 kg of hydrogen gas in a rocket is burnt in excess oxygen. b) Aluminum is used to reduce iron (IlI) oxide to iron in the Thermite reaction. Calculate the enthalpy change when 1 mol iron (III) oxide is reduced by 2.0 mol aluminum. [Given; ΔH°f = -1676 kJ/mol: ΔH°f = -825.3 kJ/ mol] 2 AI(s) + F2O3(s) --> 2 Fe(s) + Al2O3(s)
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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Answer all questions with detailed answers on paper.
a) Hydrogen gas burns in air to form water.
2 H2(g) + O2(g) --> 2 H2O(l) ΔН = -527 kJ
Calculate heat energy is given off when 10.0 kg of hydrogen gas in a rocket is burnt in excess oxygen.
b) Aluminum is used to reduce iron (IlI) oxide to iron in the Thermite reaction. Calculate the enthalpy change when 1 mol iron (III) oxide is reduced by 2.0 mol aluminum. [Given; ΔH°f = -1676 kJ/mol: ΔH°f = -825.3 kJ/ mol]
2 AI(s) + F2O3(s) --> 2 Fe(s) + Al2O3(s)
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