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S_A_V [24]
3 years ago
5

In an endothermic reaction, heat is absorbed from the surroundings. How does this affect entropy?

Chemistry
2 answers:
stealth61 [152]3 years ago
5 0

Answer:

D. The particles in the surroundings move slower and have decreased entropy.

Explanation:

Educere/Founder's Education answer

balandron [24]3 years ago
4 0

Answer: -

Thus the entropy of the particles in the surroundings move slower and have decreased entropy.

Explanation: -

In an endothermic reaction, heat is absorbed from the surroundings.

So the particles in the surroundings lose energy to the system during an endothermic reaction.

Due to a loss in their kinetic energy, the particles move slower.

Thus the entropy of the particles in the surroundings move slower and have decreased entropy.

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For ethanol, propanol, and n-butanol the boiling points, surface tensions, and viscosities all increase. what is the reason for
Contact [7]
Moving from Ethanol through Propanol to Butanol the physical properties like boiling points, surface tension and viscosity increases because of the increases in intermolecular interactions between the molecules of given compounds.

Explanation:
                   Ethanol, propanol and butanol all have hydroxyl groups in common, means all have hydrogen bond intractions between their molecules. So, taking the hydrogen bonding interaction constant we are left with only the difference in the number of carbon atoms.
                    Butanol has the greatest physical properties than other two because it has four carbon atom chain. So, as we know the London Dispersion forces or Van der Waal forces increases with increase in molecular size and chain length of hydrocarbon.
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2 years ago
Why would scientists use a spectrometer in space.
solniwko [45]

Answer:

A. To study the chemical composition of the surface of a planet

Explanation:

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zimovet [89]

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Molarity of 0.50 mol sugar in 270 mL of solution.
EastWind [94]
<h3>Answer:</h3>

1.85 M

<h3>Explanation:</h3>

<u>We are given;</u>

  • Number of moles as 0.50 mol
  • Volume of the solution is 270 ml

But, 1000 mL = 1 L

  • Thus, volume of the solution is 0.27 L

We are required to calculate the molarity of the solution;

  • Molarity refers to the concentration of a solution in moles per liter.
  • It is calculated by dividing number of moles with the volume.

Molarity = Moles ÷ Volume

In this case;

Molarity = 0.50 moles ÷ 0.27 L

             = 1.85 Mol/L or 1.85 M

Therefore, molarity of the solution is 1.85 M

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