2 years ago

What is enthalpy?

Chemistry

2 answers:

White raven [17]2 years ago

7 0

The awnser is A. Idek I looked it up so yeah that’s the awnser

Liula [17]2 years ago

7 0

Answer:

Enthalpy is the heat involved in a reaction.

Explanation:

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2) B
3) A/B not sure
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Determine the mole ratio between oxygen and water for the following equation:

vodka [1.7K]

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Explanation:

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2 years ago

The equilibrium of 2H 2 O(g) 2H 2 (g) + O 2 (g) at 2,000 K has a Keq value of 5.31 x 10-10. What is the Keq expression for this

nevsk [136]

Answer:

$5.31*10^{-10} = \frac{[]H_{2}]^{2}[O_{2}]}{[H_{2}O]^{2}}$

Explanation:

For a chemical reaction, equilibrium is a state at which the rate of the forward reaction equals that of the reverse reaction. The equilibrium constant Keq is a parameter characteristic of this state which is expressed as a ratio of the concentration of the products to that of the reactants.

For a hypothetical reaction:

xA + yB ⇄ zC

The equilibrium constant is :

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The equilibrium constant is expressed as :

$Keq = \frac{[]H_{2}]^{2}[O_{2}]}{[H_{2}O]^{2}}$

Since Keq = 5.31*10^-10

$5.31*10^{-10} = \frac{[]H_{2}]^{2}[O_{2}]}{[H_{2}O]^{2}}$

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