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andrew11 [14]
1 year ago
8

An oxygen (O2) molecule is adsorbed on a patch of surface (see sketch at right). This patch is known to contain 324 adsorption s

ites. The (O2) molecule has enough energy to move from site to site, so it could be on any one of them. Suppose additional surface becomes exposed, so that 400 adsorption sites are now available for the molecule. Calculate the change in entropy. One way an O, molecule could be adsorbed on a patch of surface with 16 sites Round your answer to 3 significant digits,
Chemistry
1 answer:
julia-pushkina [17]1 year ago
4 0

The change in entropy is 2.91 x 10-24 J/K

For an ideal gas,

The entropy of a molecule, S = KB ln(W)

KB – Boltzmann constant (1.38065 x 10-23 J/K)

W – Equivalent microstates of the molecule.

Winitial = 324

Wfinal = 400

Sfinal – Sinital = KB ln(Wfinal) - KB ln(Winital)

ΔS = KB ln(Wfinal / Winital)

= (1.38065 x 10-23 J/K) * ln(400/324)

= 2.91 x 10-24 J/K

In the ideal gas law, the temperature of the hydrogen gas is determined if the volume and pressure of the gas are known.

Learn more about ideal gas here: brainly.com/question/25290815

#SPJ4

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rewona [7]

Answer:

The correct answer is - they can create genetic diversity as well and reproduce without mate when necessary.

Explanation:

Sexual reproduction provides an organism with genetic diversity and variation by the process and it required two mates and a longer time to pollination and fertilization and is used in normal conditions.

In case of a threat, such organisms use asexual reproduction to increase their number as in asexual reproduction no need of mate, an organism can grow and increase on its own it provides to not to exitinct.

7 0
3 years ago
Silver nitrate and calcium chloride react to form calcium nitrate and silver chloride. Write the equation.
8090 [49]

Answer:

Explanation:

2AgNO3 + CaCl2 ----> 2AgCl +  Ca(NO3)2

6 0
3 years ago
The rate of reaction was measured during a chemical reaction. After the first 3 seconds, the rate of reaction was 1.8 x10-6 M/s.
avanturin [10]

Answer:

The rate would be lower and the concentration of reactants would be lower.

Explanation:

The rate of a chemical reaction depends on the rate constant and the concentration of reactants.

For Ex:

For a reaction experimentally given by A + B ----> C + D

Rate = k[A][B]

where k is the rate constant

          [A] = concentration of reactant A

          [B] = concentration of reactant B

As the reaction proceeds,the concentration of reactant decrease and concentration of products increase.Rate constant k depends only on temperature and activation energy.Hence it will remain constant throughout the reaction assuming that reaction is carried out at constant temperature and pressure.

Hence rate will depend only on concentration of reactants and hence decrease with decrease in concentration of reactants.

8 0
3 years ago
PLSSSSS ANSWERRRR?????
vredina [299]

Answer:steeper

Explanation:if it was me thats what i would pick

7 0
3 years ago
The number of molecules of nitrogen, n2, found in 500.0 g of nitrogen gas is?
8_murik_8 [283]
The molar mass of monotonic Nitrogen is 14 g/mol. Since this is diatomic Nitrogen, double that to 28 g/mol.
Next, divide total mass by molar mass, 500 g / 28 g/mol, which gives <span>17.8571 moles. A mole is defined as being 6.022*10^23 molecules, so multiply moles by molecules/mol (Avogadro's number), and we finally end up with something like 1.075 * 10^25, give or take a few billion particles.</span>
5 0
3 years ago
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