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.
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Question 59 of 70
The volume of
1
unit of plasma is 200.0 mL
If the recommended dosage
for adult patients is 10.0 mL per kg of body mass, how many units are needed for
a patient with a body mass of 80.0
kg ?
80.0
kg
10.0
DAL
1
units
X
X
4.00
units
1
1
Jeg
200.0
DAL
L
1 units
X
200.0 mL
= 4.00 units
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200.0
2.00
1.60 × 10³
80.0
4.00
0.0400
0.250
10.0
8.00
&
mL
mL/kg
kg
units/mL
L
unit
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Identify the starting material in the following reaction. Click the "draw structure" button to launch the
drawing utility.
draw structure ...
[1] 0 3
C10H18
[2] CH3SCH3
H
In an equilibrium mixture of the formation of ammonia from nitrogen and hydrogen, it is found that
PNH3 = 0.147 atm, PN2 = 1.41 atm and Pн2 = 6.00 atm. Evaluate Kp and Kc at 500 °C.
2 NH3 (g) N2 (g) + 3 H₂ (g)
K₂ = (PN2)(PH2)³ = (1.41) (6.00)³ = 1.41 x 104