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1. |
If heat contents of CH‚Äö√á√ë, C‚Äö√á√áH‚Äö√á√ë and C‚Äö√á√âH‚Äö√á√ are -17.9, 12.5 and -24.8 kcal/mole respectively, than ≈í√ÆH for the reaction CH‚Äö√á√ë(g) + C‚Äö√á√áH‚Äö√á√ë(g) ‚Äö√°√£ C‚Äö√á√âH‚Äö√á√ (g) will be __________ Kcal.# |
A. | -19.4 |
B. | -30.2 |
C. | 55.2 |
D. | -55.2 |
Answer» B. -30.2 | |