Answer:
The change in entropy is -1.66 kJ/K.
Explanation:
Heat of vaporization of acetic acid = 41.0 kJ/mol
Heat of condensation of acetic acid = -41.0 kJ/mol
Mass of acetic acid = 954 g
Condensing temperature of acetic acid =118.1 °C = 391.25 K
Moles of acetic acid = ![\frac{954 g}{60.05 g/mol}=15.8867 mol](https://tex.z-dn.net/?f=%5Cfrac%7B954%20g%7D%7B60.05%20g%2Fmol%7D%3D15.8867%20mol)
Heat evolved during condensation of 15.8867 moles of acetic acid:
![-41.0 kJ/mol\times 15.8867 mol=-651.35 kJ](https://tex.z-dn.net/?f=%20-41.0%20kJ%2Fmol%5Ctimes%2015.8867%20mol%3D-651.35%20kJ)
Entropy change = ΔS = ![\frac{Heat}{Temperature}](https://tex.z-dn.net/?f=%5Cfrac%7BHeat%7D%7BTemperature%7D)
![\Delta S=\frac{-651.35 kJ}{391.25 K}=-1.664 kJ/K\approx -1.66 kJ/K](https://tex.z-dn.net/?f=%5CDelta%20S%3D%5Cfrac%7B-651.35%20kJ%7D%7B391.25%20K%7D%3D-1.664%20kJ%2FK%5Capprox%20-1.66%20kJ%2FK)
The change in entropy is -1.66 kJ/K.
Answer:
Judy is determined to make the world a better place while breaking preconceptions about other species. Nick views Judy as a nuisance at first. He also mentions having noticed her canister of Fox repellent when they first met, leading him to believe her to be a bigoted individual, which he detests.
Explanation:
Answer: you need to know the Mass (grams) of the object, and its Volume (measured in mL or cm³). Divide the mass by the volume in order to get an object's Density. How can you tell if something will float in water?
Explanation:
⇒ only atom consist of 1 electron and one proton
Rest atoms greater than 1 atomic number (neutral) have neutrons,electrons and protons.
Answer:
A pie chart
Explanation:
A pie chart would be the ideal type of chart to create this visual aid. A pie chart is simpler visually and easily understood. It can show data as portions or percentages of a whole. Since what they want is to present the different gases found in Earth's atmosphere, they can show what percentage of the different gases make up the atmosphere.
It is simpler because the size of each portion or "slice" of the pie chart itself can reveal a lot about the data without even reading the numbers.