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Use the Bond Enthalpies Given to Estimate the Heat Released

Question 163

Multiple Choice

Use the bond enthalpies given to estimate the heat released when ethene, CH2=CH2, Reacts with hydrogen to give CH3CH3.Bond enthalpies ( kJ.mol-1 ) : C-H,412; C-C,348; C=C,612; C-Br,276; H-H,436.


A) 124 kJ.mol-1
B) 342 kJ.mol-1
C) 288 kJ.mol-1
D) 148 kJ.mol-1
E) 560 kJ.mol-1

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