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2 years ago

During the charging process, the allied liquid becomes gas. What happens to particles in the liquid

1 answer:

8 0

Answer: The particles need energy to overcome the attractions between them. As the liquid gets warmer more particles have sufficient energy to escape from the liquid. Eventually even particles in the middle of the liquid form bubbles of gas in the liquid.

Explanation:

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Amino acids is the building blocks

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A solution of ethanol (c2h5oh) in water is prepared by dissolving 75.0 ml of ethanol (density 0.79 g/cm3 ) in enough water to ma

navik [9.2K]

Given the density of ethanol = 0.79 $\frac{g}{cm^{3} }$

Volume of ethanol = 75.0 mL

Calculating the mass if ethanol from density and volume:

$75.0 mL * \frac{0.79g}{1cm^{3} } *\frac{1cm^{3} }{1mL}=59.25g$

Molar mass of ethanol = (2*atomic weight of C)+(6*atomic weight of H)+(1*atomic weight of O)

=(2*12g.mol) + (6*1g/mol) + (1*16g/mol)

=46g/mol

Moles of ethanol = $59.25 g *\frac{1 mol}{46g} =1.288 mol$

Volume of the solution = 250.0 mL

Converting the volume from mL ot L:

$250.0mL*\frac{1L}{1000mL}=0.2500L$

Molarity of ethanol in the solution = $\frac{1.288mol}{0.250L} =5.15 M$

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3 years ago

How are S and P Waves different ? Include what materials they travel through

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Answer:

Surface waves travel along the surface. There are two types of body waves: P-waves travel fastest and through solids, liquids, and gases; S-waves only travel through solids.

Explanation:

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3 years ago

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2 years ago

Nitrogen forms a surprising number of compounds with oxygen. A number of these, often given the collective symbol NOx (for "nitr

kvv77 [185]

Answer:

9.2

Explanation:

Let's do an equilibrium chart of this reaction:

2NO(g) + O₂(g) ⇄ 2NO₂(g)

4.9 atm 5.1 atm 0 Initial

-2x -x +2x Reacts (stoichiometry is 2:1:2)

4.9-2x 5.1-x 2x Equilibrium

The mole fraction of NO₂ (y) can be calculated by the Raoult's law, that states that the mole fraction is the partial pressure divided by the total pressure:

y = 2x/(4.9 - 2x + 5.1 -x + 2x)

0.52 = 2x/(10 - x)

2x = 5.2 -0.52x

2.52x = 5.2

x = 2.06 atm

Thus, the partial pressure at equilibrium are:

pNO = 4.9 -2*2.06 = 0.78 atm

pO₂ = 5.1 - 2.06 = 3.04 atm

pNO₂ = 2*2.06 = 4.12 atm

Thus, the pressure equilibrium constant Kp is:

Kp = [(pNO₂)²]/[(pNO)²*(pO₂)]

Kp = [(4.12)²]/[(0.78)²*3.04]

Kp = [16.9744]/[1.849536]

Kp = 9.2

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2 years ago