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Kamila [148]
3 years ago
14

The standard entropy change of a reaction has a positive value. This reaction results in: Select the correct answer below: a dec

rease in entropy. an increase in entropy. no entropy change. neither an entropy increase nor decrease.
Chemistry
1 answer:
Ira Lisetskai [31]3 years ago
5 0

Explanation:

The standard entropy change of a reaction has a positive value. This reaction results in an increase in entropy.

Positive entropy means the system has increased its degree of disorderness.

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Where is the epicenter of this hypothetical earthquake?
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How many milliliters of nitrogen, N2, would have to be collected at 99.19 kPa and 28oC to have a sample containing 0.015 moles o
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Explanation:

The following data were obtained from the question:

Pressure (P) = 99.19 kPa

Temperature (T) = 28°C

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Volume (V) =...?

Next, we shall convert the pressure and temperature to appropriate units. This is illustrated below:

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101.325 KPa = 1 atm

Therefore, 99.19 kPa = 99.19/101.325 = 0.98 atm

For Temperature:

T(K) = T(°C) + 273

T(°C) = 28°C

T(K) = 28°C + 273 = 301K.

Next we shall determine the volume of N2. The volume of N2 can be obtained by using the ideal gas equation as shown below:

PV = nRT

Pressure (P) = 0.98 atm

Temperature (T) = 301K

Number of mole (n) = 0.015 mole

Gas constant (R) = 0.0821atm.L/Kmol.

Volume (V) =...?

0.98 x V = 0.015 x 0.0821 x 301

Divide both side by 0.98

V = (0.015 x 0.0821 x 301) /0.98

V = 0.378 L

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1L = 1000mL

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3 years ago
Use the equation:
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Answer:

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