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5)
Hydrogen can be produced by the steam reforming of methane as follows:
$\mathrm{H}_{2} \mathrm{O}(\mathrm{g})+\mathrm{CH}_{4}(\mathrm{~g})=\mathrm{CO}(\mathrm{g})+3 \mathrm{H}_{2}(\mathrm{~g})$
a) If $K_{c}$ is $3.8 \times 10^{-3}$ at $1000 \mathrm{~K}$, what is the value of $K_{p}$ ?
b) If $K_{p}$ is $6.1 \times 10^{4}$ at $1125^{\circ} \mathrm{C}$, what is the value of $K_{c}$ ?
$[26,4.6]$
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Answer from Sia

Posted 6 months ago

Solution

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a Answer

$K_p = 3.1 \times 10^{2}$

Key Concept

The relationship between $K_p$ and $K_c$ involves the temperature and the change in the number of moles of gas.

Explanation

$K_p$ is calculated from $K_c$ by considering the change in moles of gas and the temperature in Kelvin.

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b Answer

$K_c = 3.3 \times 10^{-2}$

Key Concept

The relationship between $K_p$ and $K_c$ is used to calculate one from the other, given the temperature and the change in moles of gas.

Explanation

$K_c$ is calculated from $K_p$ by using the ideal gas constant and the temperature in Kelvin, along with the change in moles of gas.

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