Answer:
An increase in the intensity of sounds or fire issuing from a relief valve.
<h2>
What does "contents under pressure" mean?</h2>
Propane serves as the propellant in all aerosols. R-12, a Freon that was the previous propellant, has been outlawed because it harms the ozone layer above the poles. Propane and R-12 share the same pressure-temperature characteristics.
Propane's boiling point is quite low. It desires a boil-off at ambient temperature. And it continues to do so until the pressure inside a closed container rises to roughly 150 psi (give or take depending on temperature), at which time the boiling point is raised high enough to cause the substance to stop boiling.
"Contents Under Pressure" is exactly what the notice indicates. Paint, hairspray, lubricant, wasp and hornet spray, among other liquids, can be found within an aerosol can, which is a pressure vessel. By inspecting the bottom, you may determine whether a vessel is a pressure vessel. If it is dished in like a bowl, it has the same pressure-holding end as a huge propane tank, with the exception that the curve on the latter has an outward orientation. On aerosol canisters, it is inward because they must sit upright for ease. A circular bottom just cannot accomplish that. But the top resembles an outer hemisphere more or less.
Thank you,
Eddie
Answer:
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The overall rate law in terms of the initial rate of the reaction is:
= ![k_{overall} [H_{2} SO_{4} ]^{2} [C_{6}H_{6}]](https://tex.z-dn.net/?f=k_%7Boverall%7D%20%5BH_%7B2%7D%20SO_%7B4%7D%20%5D%5E%7B2%7D%20%5BC_%7B6%7DH_%7B6%7D%5D)
The Sulfonation of benzene has the following mechanism:
(1) 
⇌ 
[fast]
(2) 
→ 
[slow]
(3) 
→ 
[fast]
(4) 
→ 
[fast]
<h3>Calculation of rate law:</h3>
Given that the reaction's slowest step is the rate-dependent step, the following is the definition of rate law:
Rate = ![k_{2} [SO_{3} ][C_{6} H_{6} ]](https://tex.z-dn.net/?f=k_%7B2%7D%20%5BSO_%7B3%7D%20%5D%5BC_%7B6%7D%20H_%7B6%7D%20%5D)
However, the issue is that because 
is an intermediate, it cannot be accounted for in the general rate legislation.
The following rate rule governs the synthesis of :
Rate = ![k_{1}[H_{2} SO_{4} ]^{2}](https://tex.z-dn.net/?f=k_%7B1%7D%5BH_%7B2%7D%20SO_%7B4%7D%20%20%5D%5E%7B2%7D)
Consequently, if we replace equation 1 with equation 2,
Rate is determined to be =
Hence, the overall rate law in terms of the initial rate of the reaction is:
=
Learn more about rate law here:
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Answer:
OPTION C) All hydrogen ions and all hydroxide ions have reacted to produce water, and so neither ion remains free in solution.
Explanation:
The PH reading on the left axis of the graph shows a value of 7.
A value of 7 on the PH scale implies that equal number of hydrogen ions completely reacted with hydroxyl ions to produce water i.e there is no excess of hydrogen and hydroxyl ion remaining in solution.
For values greater than 7, a basic solution is formed and it signifies the presence of excess hydroxyl ion. If the value is less than 7, there is more hydrogen ions in the solution formed and it is said to be acidic.
At point 7, the hydrogen and hydroxyl ions are equal and completely neutralize out one another.
Note: The acid solution would require a base volume of 20mL to be completely neutralized according to the plot. If it is less, the PH shifts to the left and the solution becomes acidic. If it more, the solution becomes basic and the PH shifts rightwards.
Answer:
The different types of radiation are defined by the the amount of energy found in the photons. Radio waves have photons with low energies, microwave photons have a little more energy than radio waves, infrared photons have still more, then visible, ultraviolet, X-rays, and, the most energetic of all, gamma-rays.Explanation: hope this helps god bless you
