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Ksivusya [100]
3 years ago
14

Read the engineering box on The Noble Gasses. Why are noble gasses so stable and unreactive?

Chemistry
2 answers:
Aleksandr [31]3 years ago
8 0
They are so stable because they all have 8 valence electrons. please mark brainliest
Elan Coil [88]3 years ago
5 0

Answer:

Nobel gases are so stable and unreactive because that have a full outer ring of 8 ,or in case of helium 2, valance electrons,

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For the reaction C (s) + H2O (g) --> CO (g) + H2 (g) ΔH = 131.3 kJ/mol and ΔS = 133.6 J/K-mol at 298K. At temperatures greate
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Answer:

The reaction is spontaneous when T> 0.98 Kelvin   OR T> -272.17°C

Explanation:

Step 1: Data given

ΔH = 131.3 kJ/mol = 131300 J/mol

ΔS = 133.6 J/K*mol

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Step 2: The balanced equation

C (s) + H2O (g) --> CO (g) + H2 (g)

Step 3: ΔG

For a reaction to be spontaneous, ΔG should be <0

When ΔG > 0 the reaction is spontaneous in the reverse direction.

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Since ΔG<0

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- T*133.6 J/K*mol < -131300 J/mol

-T <-131300 /133.6

-T< -982.8 Kelvin

T> 982.8 Kelvin   OR T> 709.6°C

The reaction is spontaneous when T> 982.8 Kelvin   OR T> 709.6°C

At 298 K this reaction C (s) + H2O (g) --> CO (g) + H2 (g) is <u>not spontaneous</u>

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The equation for percent yield is
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Answer:

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