Arrange the steps to be consider in determining the enthalpy of a reaction using Hess's Law steps : • Add the equations algebraically. Subtances that appear on opposite sides of the equation may be cancelled • Write equation (1) as is. • Rewrite reaction (3) in the reverse direction and change the sign of ∆H from- to +. •Multiply reaction (2) by two multiplying the values of ∆H".
Arrange the steps to be consider in determining the enthalpy of a reaction using Hess's Law steps : • Add the equations algebraically. Subtances that appear on opposite sides of the equation may be cancelled • Write equation (1) as is. • Rewrite reaction (3) in the reverse direction and change the sign of ∆H from- to +. •Multiply reaction (2) by two multiplying the values of ∆H".
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter7: Chemical Energy
Section: Chapter Questions
Problem 93AE: Three gas-phase reactions were run in a constant-pressure piston apparatus as shown in the following...
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Arrange the steps to be consider in determining the enthalpy of a reaction using Hess's Law
steps :
• Add the equations algebraically. Subtances that appear on opposite sides of the equation may be cancelled
• Write equation (1) as is.
• Rewrite reaction (3) in the reverse direction and change the sign of ∆H from- to +.
•Multiply reaction (2) by two multiplying the values of ∆H".
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