1.

When 1 mole of C_(2)H_(6)(g)at 27^(@)C is burnt completely in some oxygen gas at 27^(@)C At constant pressure, CO_(2)(g),CO(g)and H_(2)O(g) are produce at 327^(@)C. the surropundings. The standard enthaplies of formation of C_(2)H_(6)(g).CO(g) and H_(2)O(g) are -40, -90, -30 and -60kcal//mol respectively. The molor heat capacities at constant pressure ofCO_(2)(g),CO(g) and H_(2)O (g) are 7.0,6.0 and 9.0cal//Kmol, respectively. The molar hear capacities at constnt pressure of CO_(2)(g),CO(g) and H_(2)O (g) are 7.0,6.0 and 9.0 cal//K-mol respectively.On the basis of these informations, math teh valuesof column-I with the quantities represented in column-II Assume Delta_(r)H independent of temperature. {:(,"Column-I",,"Column-II"),((a),1.0,(p),Delta_(r)H "of reaction" : 2C_(2)H_(6)(g) + 7O_(2)(g)rarr 4CO_(2)(g)+6H_(2)O(g),"is"),((b),-200"kcal",(q),Delta_(r)H"of reactIon":C_(2)H_(6)(g)+(5)/(2)O_(2)(g)rarr2CO(g)+3H_(2)O(g)"is"),((C),-3600"cal",(r),"moles of CO formedis"),((d),-640kcal,(s),"Moles of CO_(2)formed is"),(,,(t),"Work done by the system is") :}

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ANSWER :`(a-r, s);(b-q);(c-t);(d-p)`


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