Deterioration of buildings, bridges, and other structures through the rusting of iron costs millions of dollars every day. Although the actual process also requires water, a simplified equation (with rust shown as Fe,O3) is: 4 Fe(s) + 3 02(g) → 2 Fe2O3(s) AHrxn =-1.65 x 10 kJ (a) What is the AHxn when 0.250 kg of iron rusts? х 10 kJ (b) How much rust forms when 1.10 × 10' kJ of heat is released? x 10 g Fe,O3

Deterioration of buildings, bridges, and other structures through the rusting of iron costs millions of dollars every day. Although the actual process also requires water, a simplified equation (with rust shown as Fe,O3) is: 4 Fe(s) + 3 02(g) → 2 Fe2O3(s) AHrxn =-1.65 x 10 kJ (a) What is the AHxn when 0.250 kg of iron rusts? х 10 kJ (b) How much rust forms when 1.10 × 10' kJ of heat is released? x 10 g Fe,O3

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter4: Energy And Chemical Reactions

Section4.4: Heat Capacity

Problem 4.4PSP

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