They are metric units of measurement.
<span>According to its definition, the answer is: The characteristics that best describe the tail of a phospholipid molecule are </span><span>a. neutral charge, nonpolar, and hydrophobic</span>
Answer:
337.22 K
Explanation:
Given that:
P₁ = 1 atm
T₁ = 350 K
P₂ = 0.639 atm
T₂ = ??? (unknown)
R(rate constant) = 8.34 J k⁻¹ mol⁻¹
Using Clausius-Clapeyron equation, we can determine the final boiling point of the process.
Clausius-Clapeyron equation can be written as:
![In\frac{P_2}{P_1}=\frac{\delta H_{vap}}{R}[\frac{T_2-T_1}{T_2T_1}]](https://tex.z-dn.net/?f=In%5Cfrac%7BP_2%7D%7BP_1%7D%3D%5Cfrac%7B%5Cdelta%20H_%7Bvap%7D%7D%7BR%7D%5B%5Cfrac%7BT_2-T_1%7D%7BT_2T_1%7D%5D)
Substituting our values given; we have:
![In\frac{0.639}{1}=(\frac{34.4*10^3J/mol}{8.314 J K^{-1}mol^{-1}})[\frac{T_2-350}{350T_2}]](https://tex.z-dn.net/?f=In%5Cfrac%7B0.639%7D%7B1%7D%3D%28%5Cfrac%7B34.4%2A10%5E3J%2Fmol%7D%7B8.314%20J%20K%5E%7B-1%7Dmol%5E%7B-1%7D%7D%29%5B%5Cfrac%7BT_2-350%7D%7B350T_2%7D%5D)
![In({0.639})=(\frac{34.4*10^3}{8.314K^{-1}})[\frac{T_2-350}{350T_2}]](https://tex.z-dn.net/?f=In%28%7B0.639%7D%29%3D%28%5Cfrac%7B34.4%2A10%5E3%7D%7B8.314K%5E%7B-1%7D%7D%29%5B%5Cfrac%7BT_2-350%7D%7B350T_2%7D%5D)
![- 0.4479 = 41317.599 [\frac{T_2-350}{350T_2} ]K](https://tex.z-dn.net/?f=-%200.4479%20%3D%2041317.599%20%5B%5Cfrac%7BT_2-350%7D%7B350T_2%7D%20%5DK)
![-\frac{0.4479}{4137.599} = [\frac{T_2-350}{350T_2} ]](https://tex.z-dn.net/?f=-%5Cfrac%7B0.4479%7D%7B4137.599%7D%20%3D%20%5B%5Cfrac%7BT_2-350%7D%7B350T_2%7D%20%5D)
![- 1.0825118*10^{-4} = [\frac{T_2-350}{350T_2} ]](https://tex.z-dn.net/?f=-%201.0825118%2A10%5E%7B-4%7D%20%3D%20%5B%5Cfrac%7BT_2-350%7D%7B350T_2%7D%20%5D)






∴ the boiling point of CH3COOC2H5 when the external pressure is 0.639 atm is <u>337.22</u> K.
Most chemical changes in digestion occur in the small intestine. Large molecules of food are broken down into smaller molecules that can be absorbed by our cells. Carbohydrates, proteins, and fats are broken down in different parts of the digestive system using different kinds of enzymes.
hope this helped.