In a chemical reaction- the energy required to dissociate 4 g of H 2 into free gaseous atoms is x KJ- What will be the value of - H H - H -A- x - 2 kJ mol -1B- 0-25 - kJ mol -1C- x - 3 kJ mol -1D- x kJ mol -1

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Heat of Formation

In a chemical...

Question

In a chemical reaction, the energy required to dissociate 4g of H₂into free gaseous atoms is x KJ. What will be the value of ∆H_H-H?

x/2 kJ mol^-1

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0.25 x kJ mol^-1

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x/3 kJ mol^-1

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x kJ mol^-1

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Solution

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4

H_{2}

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25^{o}

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Energy required to dissociate 4 g of gaseous hydrogen into free gaseous atoms is 208 kcal at 25^oC. The bond energy of H-H bond will be:

25^{\circ} C

25^{\circ} C

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