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Physical Chemistry
1. What is a compound
2. Pressure has an appreciable effect on the solubility of ............. In liquid
3.......... Is the ration of molar enthalpy of a liquid to its boilinv point
4. The temperature at which the vapour pressure of a liquid equals the external pressure.
5. Mixture that is not a nearly liquid mixture
2. Pressure has an appreciable effect on the solubility of ............. In liquid
3.......... Is the ration of molar enthalpy of a liquid to its boilinv point
4. The temperature at which the vapour pressure of a liquid equals the external pressure.
5. Mixture that is not a nearly liquid mixture
Physical Chemistry
A tank with a capacity of 14 L contains helium gas at 24 °C under a gauge pressure of 2700 kPa
a) Determine the volume of a balloon filled with this gas if the helium expands to an internal absolute pressure of 1 atm and the temperature drops to −35 °C ?
b) Now suppose the system returns to its original temperature (24 °C). Calculate the final volume of the balloon.
a) Determine the volume of a balloon filled with this gas if the helium expands to an internal absolute pressure of 1 atm and the temperature drops to −35 °C ?
b) Now suppose the system returns to its original temperature (24 °C). Calculate the final volume of the balloon.
Physical Chemistry
Reduction of volume of a solution in an experiment can be achieved by --------.
Freeze drying the solution
Prespitating out the solution
Filtering out the solution
Control heat of the solution.
Freeze drying the solution
Prespitating out the solution
Filtering out the solution
Control heat of the solution.
Physical Chemistry
Determination of ph of acid solution like 0.1 M HCl, 0.05 M HCl, 0.025 M HCl and 0.0125M HCl by using Quinhydrone and Calomel electrode.ComPare the value of ph with the theoretically calculated values.
Physical Chemistry
Hello:
I keep a bottle of hand sanitizer on my desk at work, as I touch a lot of things throughout the day. When I used it yesterday, a bit must've been left in the pump track or opening. So I was about to use it and I see that in the opening it looks opaque, kind of like lotion. I press the pump and it releases the opaque portion followed by the normal, gooey sanitizer.
What caused this chemical change? The air conditioning in our building is still on, but at about 6 p.m., the HVAC is turned off. Our lowest temps at night are between the 40s and the 50s.
Please clarify what is going on, particularly if something is wrong with sanitizer and I need to through it away.
Thank you!
I keep a bottle of hand sanitizer on my desk at work, as I touch a lot of things throughout the day. When I used it yesterday, a bit must've been left in the pump track or opening. So I was about to use it and I see that in the opening it looks opaque, kind of like lotion. I press the pump and it releases the opaque portion followed by the normal, gooey sanitizer.
What caused this chemical change? The air conditioning in our building is still on, but at about 6 p.m., the HVAC is turned off. Our lowest temps at night are between the 40s and the 50s.
Please clarify what is going on, particularly if something is wrong with sanitizer and I need to through it away.
Thank you!
Physical Chemistry
Is rusting a moderate reaction?
Physical Chemistry
Rusting is an example of what reaction?
Physical Chemistry
For a reaction 2H2 + 2NO ->2H2O + N2
The other of reaction is
The other of reaction is
Physical Chemistry
ON adding more solid solute to a solution,does solution will freeze more rapidly ?
Please tell me about it , I am very confused it should not more rapidly freeze a/c to me
Please tell me about it , I am very confused it should not more rapidly freeze a/c to me
Physical Chemistry
For the process CHCL3 (s) --> CHCL3 (l), delta H° = 9.15 kJ/mol and delta S° = 43.9 J/mol/K. What is the melting point of chloroform?
