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inn [45]
3 years ago
10

What do you think about this volcanoes? Its for my science project, so be honest or brutally honest as possible. And tell me wha

t I do I need to do to make it look better.

Chemistry
2 answers:
uranmaximum [27]3 years ago
6 0
It looks pretty good I can see a lot of effort. Just one thing: the lava shouldn't be so equally spread out. It usually flows a majority in one direction. Good luck!
Anestetic [448]3 years ago
4 0
Wow! That's a cool volcano. In elementary I had to make a volcano and I used clay to make it. But yours kind of looks like a pumpkin... omg sorry... but i was just being honest... haha. Good luck on that! 
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At a certain temperature, the K p for the decomposition of H 2 S is 0.859 . H 2 S ( g ) − ⇀ ↽ − H 2 ( g ) + S ( g ) Initially, o
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Answer:

P = 0.444 atm

Explanation:

The reaction of decomposition of H₂S is:

                    H₂S(g)   ⇄  H₂(g)  + S(g)      

<em>Initial</em>            0.245          0           0

<em>Equilibrium  </em>0.245-x       x            x

The equilibrium constant (Kp) of the above reaction is the following:

K_{p} = \frac{P_{H_{2}}*P_{S}}{P_{H_{2}S}}     (1)

Knowing that initally, only H₂S is present at P = 0.245, the Kp of equation (1) at equilibrium is:

0.859 = \frac{x*x}{0.245 - x}  

x^{2} -0.859*0.245 + 0.859x = 0

Using the quadratic formula we get x₁ = 0.199 and x₂ = -1.058.

Taking only the possitive number we have that:

P_{H_{2}} = P_{S} = x = 0.199 atm      

P_{H_{2}S} = (0.245 - 0.199) atm = 0.046 atm      

Therefore, the total pressure in the container at equilibrium is:

P_{T} = P_{H_{2}} + P_{S} + P_{H_{2}S} = (0.199*2 + 0.046) atm = 0.444 atm

I hope it helps you!

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