Answer: B: Symbols of Elements
Explanation:
Answer:
electrical
Explanation:
they are working together
First, let's compute the number of moles in the system assuming ideal gas behavior.
PV = nRT
(663 mmHg)(1atm/760 mmHg)(60 L) = n(0.0821 L-atm/mol-K)(20+273 K)
Solving for n,
n = 2.176 moles
At standard conditions, the standard molar volume is 22.4 L/mol. Thus,
Standard volume = 22.4 L/mol * 2.176 mol =<em> 48.74 L</em>
Answer:
The value of Kp at this temperature is 7.44*10⁻³
Explanation:
Chemical equilibrium is established when there are two opposite reactions that take place simultaneously at the same speed.
For the general chemical equation for a homogeneous gas phase system:
aA + bB ⇔ cC + dD
where a, b, c and d are the stoichiometric coefficients of compounds A, B, C and D, the equilibrium constant Kp is determined by the following expression:
![Kp=\frac{P_{C} ^{c} *P_{D} ^{d} }{P_{A} ^{a} *P_{B} ^{b} }](https://tex.z-dn.net/?f=Kp%3D%5Cfrac%7BP_%7BC%7D%20%5E%7Bc%7D%20%2AP_%7BD%7D%20%5E%7Bd%7D%20%7D%7BP_%7BA%7D%20%5E%7Ba%7D%20%2AP_%7BB%7D%20%5E%7Bb%7D%20%7D)
Where Px is the partial pressure of each of the components once equilibrium has been reached and they are expressed in atmospheres. The equilibrium constant Kp depends solely on temperature and is dimensionless.
In the case of the reaction:
2 HI (g) ⇔ H₂ (g) + I₂ (g)
the equilibrium constant Kp is determined by the following expression:
![Kp=\frac{P_{H_{2} } *P_{I_{2} } }{P_{HI} ^{2} }](https://tex.z-dn.net/?f=Kp%3D%5Cfrac%7BP_%7BH_%7B2%7D%20%7D%20%2AP_%7BI_%7B2%7D%20%7D%20%7D%7BP_%7BHI%7D%20%5E%7B2%7D%20%7D)
The system comes to equilibrium at 425 °C, and
- PHI = 0.794 atm
- PH2 = 0.0685 atm
- PI2 = 0.0685 atm
Replacing:
![Kp=\frac{0.0685*0.0685}{0.794^{2} }](https://tex.z-dn.net/?f=Kp%3D%5Cfrac%7B0.0685%2A0.0685%7D%7B0.794%5E%7B2%7D%20%7D)
Kp=7.44*10⁻³
<u><em>The value of Kp at this temperature is 7.44*10⁻³</em></u>