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In the thermite reaction used for obtaining energy, aluminium and ferric oxide react to from iron and aluminium oxide . From the given datw identify the option (s) which is (are ) correct : [Given :`Delta H_(f)^(@) Al_(2)O_(3) =- 390 KJ//"mole"`, `DeltaH_(f)^(@) Fe_(2)O_(3)=-176kJ//mol`, density of aliuminium `=2.7gm//ml` density of `Fe_(2)O_(3)=-3.2gm//ml"]`A. Maximum calorific value of the fuel can be `1000 J//gm.`B. Maximum calorific vale of the fuel can be `(21.4)/(7) kJ//ml`.C. `2.14 kg` of the mixture can produce 2500 kJ of heat .D. `140 ml ` of the mixture can produce 280 kJ of heat . |
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Answer» Correct Answer - a,b,d |
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