If heat contents of CH₄, C₂H₄ and C₃H₈ are -17.9, 12.5 and - – McqOptions

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1.	If heat contents of CH₄, C₂H₄ and C₃H₈ are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH₄(g) + C₂H₄(g) ↔ C₃H₈(g) will be __________ Kcal.
A.	-19.4
B.	-30.2
C.	55.2
D.	-55.2
Answer» B. -30.2

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