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C (s)+ O_{2} (g)⇌ {CO}_{2} (g); ∆ H ⇌-94 kcal {mol}^{- 1}

O_{2}

এর ধৃততাপ কত হবে?

+94 kcal {mol}^{- 1}

> +94 kcal {mol}^{- 1}

+ 47 kcal {mol}^{- 1}

zero

ANS : 4

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