All Questions
11 questions
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Neglected partial pressures dependence of water splitting
I am studying electrochemical water splitting and I have a huge doubt. The standard redox potential for the total reaction is 1.23 V, but this is in standard conditions, where the hydrogen and oxygen ...
- 19
2
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0
answers
52
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Validity of ideal gas law for pure species or mixture
I'm currently dealing with an application involving gases. I have pure nitrogen as a pressurizer and eventually water vapour (only if condition for evaporation or boiling are met).
I wanted to ask to ...
- 33
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1
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44
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What happens to the air pressure above water as its heated to and past boiling?
If I put a pressure sensor inside an airtight container half-filled with water, and heat the water, what will the pressure sensor read as the temperature increases? Would it linearly increase (black ...
- 183
2
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1
answer
597
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How does the partial pressure of oxygen relate to its concentration in water?
I've read that the partial pressure of oxygen in water will be the same as the partial pressure of oxygen in the atmosphere, but that the saturation of oxygen in water is dependent on factors like ...
- 123
1
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0
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135
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Saturation of air within isolated system with water and ethanol
I am planning an experiment in an isolated system that contains two droplets.
One droplet is water and the other one is a 40% ethanol-water mixture.
The isolated compartment is filled with air at 20°C....
2
votes
1
answer
154
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How does hydraulic equilibrium work on the particulate level?
I recently learned that osmosis occurs when there is a semipermeable membrane between pure water and a solution of water. The pure water then fills up the solution's side until, as my textbook put it,
...
- 21
3
votes
3
answers
429
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Metering Device decreases pressure yet produces saturated liquid?
This question pertains to the change of state of liquid using a Metering Device as the refrigerant enters an Evaporator Coil of an HVAC system:
The Metering Device takes liquid and then reduces the ...
- 131
3
votes
1
answer
127
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What is a simple formula to approximate the change in relative humidity as temperature rises/falls?
The moisture-carrying ability of air goes up as the temperature rises. So if I take a volume of air and heat it or cool it (allowing it to expand/contract so the pressure remains constant) how can I ...
- 133
2
votes
1
answer
159
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Determining the amount of water to create a given pressure in a sealed container
I have a sealed container with a volume of 1 liter. I want to go from an initial pressure of $P_{1}=1\ \mathrm{atm}$ and an initial temperature of $T_{1}=298\ \mathrm{K}$ to a final pressure of $P_{2}=...
- 21
5
votes
1
answer
2k
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Can gaseous hydrogen and gaseous oxygen be compressed without reaction?
I'm looking into building a clean Bunsen-style burner (or rocket engine - I haven't decided yet). I will be using electrolysis to extract hydrogen and oxygen from water, but the apparatus I am ...
- 161
0
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166
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Ice under very high pressure phase transitions [duplicate]
If you put a piece of ice into a very high pressure chamber and increase the pressure, I can understand how the ice turns to a water state. But what happens after that? Does the pressure push the ...
