Heat of combustion of A(s) is -10" kcal mol"^(-1) and that of B is-"15 – InterviewSolution

1.	Heat of combustion of A(s) is -10" kcal mol"^(-1) and that of B is-"15 kcal mol"^(-1). On combustion of 3 mol of A and x mol of B , the heat released "105 kcal ". What is the value of x ?
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