Explanation for the phenomenon of evaporation of water has to be given. Concept introduction: The phenomenon of evaporation of liquid is transition from “ liquid phase ” to “ vapo r phase ”. Almost all the liquids have the tendency to evaporate either spontaneously at room temperature without the effect of “ external energy ” or in the presence of external energy like heat etc. If a liquid evaporates spontaneously at room temperature then it is called “ volatile liquid ”. Examples include diethyl ether, chloroform, acetone etc. Non-volatile liquids do not evaporate at room temperature. They need external energy in the form of heat in order to increase the energy levels of the molecules to convert into vapor phase.
Explanation for the phenomenon of evaporation of water has to be given. Concept introduction: The phenomenon of evaporation of liquid is transition from “ liquid phase ” to “ vapo r phase ”. Almost all the liquids have the tendency to evaporate either spontaneously at room temperature without the effect of “ external energy ” or in the presence of external energy like heat etc. If a liquid evaporates spontaneously at room temperature then it is called “ volatile liquid ”. Examples include diethyl ether, chloroform, acetone etc. Non-volatile liquids do not evaporate at room temperature. They need external energy in the form of heat in order to increase the energy levels of the molecules to convert into vapor phase.
Solution Summary: The author explains the phenomenon of evaporation of water and the concept of phase change.
Explanation for the phenomenon of evaporation of water has to be given.
Concept introduction:
The phenomenon of evaporation of liquid is transition from “liquid phase” to “vapo r phase”. Almost all the liquids have the tendency to evaporate either spontaneously at room temperature without the effect of “external energy” or in the presence of external energy like heat etc.
If a liquid evaporates spontaneously at room temperature then it is called “volatile liquid”. Examples include diethyl ether, chloroform, acetone etc.
Non-volatile liquids do not evaporate at room temperature. They need external energy in the form of heat in order to increase the energy levels of the molecules to convert into vapor phase.
please solve. If the answer is "no error" and it asks me to type something, and i typed a-helix, its always wrong.
Can you please solve and explain this for me in a simple way? I cant seem to comprehend this problem.
Part I. Problem solving. Include all necessary calculations 13 provide plots and graphs.
Complexation wl diphenyl carbazide (OPC) in acidic media is another type of sensitive photometric method used for the analysis of aqueous.
hexavalent chromium. At 540nm the cherry-red complex as a result of DPC reaction w/ chromium can be photometrically measured.
at this wavelength.
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a 25mL
The UV-vis analysis for the determination of nexavalent chromium in ground water sample is given below. The experiment was based
on external calibration method w/ each measurement sample prepared are as follows
lab sample analysis contained the standard
100 ppb croy cor groundwater sample, volumes used as indicated below), 12.50 mL of 0.02 M H2Soy and 5.50 ml of 100 ppm DPC (wi
water to adjust final volume to 25-ml). The main stripping method was square wave voltammetry, following the conditions set
in the main ASV experiment.
Standard 100
Volumetric
Groundwater
H2SO4 0.20 M,
flask
Sample, mL
ppb CrO4*,
100…