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How many of the following have standard heat of formation is zero. (i) Br_(2(l))(ii) CO_(2(g)) (iii) C_("graphite") (iv) Cl_(2(l)) (v) Cl_(2(g)) (vi) F_(2(g)) (vii) F_((g)) (viii) l_(2(g)) (ix) S_(("monoclinic")) (x) N_(2(g)) (xi) P_(("Black")) (xii)P_((red)) (xiii) CH_(4) |
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Answer» <BR> Solution :`Br_(2)(L), C("gaphite"),F_(2)N_(2)(g) : Cl_(2)(g)` are exist in most stable FORM so, it's STANDARD HEAT of formation is zero. |
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