V1/T1=V2/T2
524 cm^3/491 K =V2/297K
V2=(524 cm^3*297K)/491 K= 317K
Answer:
D
Explanation:
The building blocks or monomers of proteins are called amino acids. There are 20 different kinds of amino acids. The amino acids form long chains that are proteins. Therefore, proteins are polymers of amino acids.
Proteins are very important for the body because they have many different roles. They provide structure for tissues, act as enzymes, hormones and antibodies, aid in transportation and fluid regulation.
Therefore, the correct answer is D. a polymer of amino acids.
Answer:
the cell enentually dies because it has no way to survive
Explanation:
Answer:
The change in entropy is -1083.112 joules per kilogram-Kelvin.
Explanation:
If the water is cooled reversibly with no phase changes, then there is no entropy generation during the entire process. By the Second Law of Thermodynamics, we represent the change of entropy (
), in joules per gram-Kelvin, by the following model:
![s_{2} - s_{1} = m\cdot c_{w} \cdot \int\limits^{T_{2}}_{T_{1}} {\frac{dT}{T} }](https://tex.z-dn.net/?f=s_%7B2%7D%20-%20s_%7B1%7D%20%3D%20m%5Ccdot%20c_%7Bw%7D%20%5Ccdot%20%5Cint%5Climits%5E%7BT_%7B2%7D%7D_%7BT_%7B1%7D%7D%20%7B%5Cfrac%7BdT%7D%7BT%7D%20%7D)
(1)
Where:
- Mass, in kilograms.
- Specific heat of water, in joules per kilogram-Kelvin.
,
- Initial and final temperatures of water, in Kelvin.
If we know that
,
,
and
, then the change in entropy for the entire process is:
![s_{2} - s_{1} = (1\,kg) \cdot \left(4190\,\frac{J}{kg\cdot K} \right)\cdot \ln \frac{288.15\,K}{373.15\,K}](https://tex.z-dn.net/?f=s_%7B2%7D%20-%20s_%7B1%7D%20%3D%20%281%5C%2Ckg%29%20%5Ccdot%20%5Cleft%284190%5C%2C%5Cfrac%7BJ%7D%7Bkg%5Ccdot%20K%7D%20%5Cright%29%5Ccdot%20%5Cln%20%5Cfrac%7B288.15%5C%2CK%7D%7B373.15%5C%2CK%7D)
![s_{2} - s_{1} = -1083.112\,\frac{J}{kg\cdot K}](https://tex.z-dn.net/?f=s_%7B2%7D%20-%20s_%7B1%7D%20%3D%20-1083.112%5C%2C%5Cfrac%7BJ%7D%7Bkg%5Ccdot%20K%7D)
The change in entropy is -1083.112 joules per kilogram-Kelvin.