Hess_Law_Sup

Hess_Law_Sup - ) + O 2 ( g ) CO 2 ( g ) H = -393.5 kJ...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Determine the heat of reaction for the decomposition of calcium carbonate (Note that you may not necessarily use all of the equations given) CaCO 3 ( s ) CaO( s ) + CO 2 ( g ) given the following thermochemical equations: Ca(OH) 2 ( s ) CaO( s ) + H 2 O( l ) Δ H = 65.2 kJ Ca(OH) 2 ( s ) + CO 2 ( g ) CaCO 3 ( s ) + H 2 O( l ) Δ H = -113.2 kJ C( s
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ) + O 2 ( g ) CO 2 ( g ) H = -393.5 kJ 2Ca(s) + O 2 ( g ) 2CaO( s ) H = -1270.2 kJ Answer Ca(OH) 2 ( s ) CaO( s ) + H 2 O( l ) H = 65.2 kJ CaCO 3 ( s ) + H 2 O( l ) Ca(OH) 2 ( s ) + CO 2 ( g ) H = 113.2 kJ H rxn = 65.2kJ + 113.2kJ = 178.4kJ...
View Full Document

Ask a homework question - tutors are online