Which of the following equations represent heat of formation of CH 4 -A- C Diamond -2 H 2 g - CH 4 g B- C Graphite -2 H 2 g - CH 4 g C- C Diamond -4 H g - CH 4 g D- C Graphite -4 H g - CH 4 g

The correct option is B C(Graphite) + 2H_2(g) → CH_4(g)Standard state of carbon is graphite ...

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Which of the ...

Question

Which of the following equations represent heat of formation of $C H_{4}$ :

C (D i a m o n d) + 2 H_{2} (g) \to C H_{4} (g)

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C (G r a p h i t e) + 2 H_{2} (g) \to C H_{4} (g)

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C (D i a m o n d) + 4 H (g) \to C H_{4} (g)

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C (G r a p h i t e) + 4 H (g) \to C H_{4} (g)

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C_{2} H_{4}

+ O_{2} \to C O_{2} (g); Δ H = - 94.3 k c a l

+ O_{2} \to C O_{2} (g); Δ H = - 97.6 k c a l

\to

C (d i a m o n d) ⇌ C (g r a p h i t e)

Δ_{r} = - 1.9 k J / m o l e

3.5

2.3 g / m L

C (d i a m o n d, s) + O_{2} (g) \to C O_{2} (g); △ H = - 94.3 k c a l

C (g r a p h i t e, s) + O_{2} (g) \to C O_{2} (g); △ H = - 97.6 k c a l

C (d i a m o n d, s) \to C (g r a p h i t e, s)

C (d i a m o n d) + O_{2} \to C O_{2}; △ H = - 395 k J

C (g r a p h i t e) + O_{2} \to C O_{2}; △ H = - 393 k J

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