\(CNG\) એક અગત્યનો વાહન વ્યવહારનું બળતણ છે. જ્યારે \(100\,g\,CNG\) ને \(208\,g\) ઓકિસજન સાથે વાહનમાં નાખવામાં આવે ત્યારે \(CO _{2}\) અને \(H _{2} O\) બનવા તરફ દોરી જાય છે અને વધુ પ્રમાણમાં ઉષ્મા ઉત્પન્ન આ દહન દરમયાન ઉત્પન્ન થતો \(CO _{2}\) નો જથ્થો (ગ્રામમાં) \(\dots\dots\dots\) છે.[ધારી લો \(CNG =\)મિથેન]

A \(143\)
B \(134\)
C \(167\)
D \(189\)

Verified Solution

Answer & Solution

Correct Answer

(A) \(143\)

Step-by-step Solution

Detailed explanation

\(CH _{4}+2 O _{2} \rightarrow CO _{2}+2 H _{2} O\) Mole \(\frac{100}{16} \quad \frac{208}{32}\) \(= 6.25\quad=6.5\) \(\frac{\text { Mole }}{\text { Stoi. Coeff. }} \frac{6.25}{1} \quad \frac{6.5}{2}=3.25\) So, \(O _{2}\) is limiting reagent Mole-Mole analysis…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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