e Work Part A What is AH..n for the following chemical reaction? CO (g)+ 2KOH(s)

Question

e Work Part A What is AH..n for the following chemical reaction? CO (g)+ 2KOH(s)+H2O()+KCOs(s) You can use the following table of standard heats of formation (AH) to calculate the enthalpy of the given reaction Standard Heat of Element Compound Standard Heat Element ( 218 Formation (k.l/mol) 473 Formation (kJlmol) H(g) H2(8) KOH(s) CO2(8) C(E) C(s) N(8) 02(8) 0(g) K2CO,(s) H2OE HNO,(a 249 1150kJ 241.8kJ 206.6 424.7 393.5 71 Express the standard enthalpy of reaction to three significant figures and include the appropriate units View Available Hint(s) Update spyware protection Spyware protection is out of date. Tap or click to updat Windows Defender 1:17 PM MacBook Pro 8 9 6

Explanation / Answer

For the given reaction we have:

dHrxn = dHH2O(g) + dHK2CO3(s) - (dHCO2(g) + 2*dHKOH(s) )

Putting values:

dHrxn = -241.8 -1150 - ( -393.5 - 2*424.7 ) = -148.9 kJ

Hope this helps !

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