All Questions
6 questions
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Finding rate constant from a change in pressure experiment
I measured the change in pressure for the decomposition of hydrogen peroxide in the presence of a manganese(IV) oxide catalyst at 5 different temperatures:
$$\ce{2 H2O2 (l) ->[MnO2 (s)] O2 (g) + 2 ...
- 59
1
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0
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32
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Finding Pressure of M in a Charge Exchange
Ar (RE = 15.5 eV) is the reagent gas in a charge exchange experiment. If Ar+ reacts with anisole with a rate constant of 2.26x10-10cm3 molecules-1/s-1 and 65% of the Ar ions react in 25 milliseconds, ...
- 51
3
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3
answers
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Does the rate constant depend on pressure?
I have read in some books that when pressure increases, the number of effective collisions increases. Hence, $k$ depends on pressure. Is it true? If so, then why doesn't $k$ depends on concentration? ...
- 43
0
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1
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Molecular kinetic interpretation of pressure
Regarding the molecular kinetic interpretation of pressure, we arrive at a point in the $F=\frac{\Delta P}{\Delta t}=\frac{2mvx}{\Delta t}$, that is to say, the force exerted in the shock on the wall ...
- 11
8
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4
answers
2k
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How does iceskating work?
I was willing to understand a little bit better the physics behind iceskating.
Messy thoughts
From New Scientist (1964) (probably not the most up-to-date reference $\ddot \smile$), I found a diagram ...
- 251
2
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1
answer
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Stability of CN molecule
The $\ce{CN}$ molecule has been observed spectroscopically in comets where pressure has been estimated to be as low as $10^{-10}\ \mathrm{mmHg}$. Draw a Lewis structure for $\ce{CN}$. Suggest an ...
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