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Vika [28.1K]
3 years ago
7

What are the signs that you are getting nervous 18 POINTS )

Chemistry
1 answer:
AlexFokin [52]3 years ago
8 0
- hands start getting sweaty
- nail biting or perhaps shaking legs
- the feeling of being overwhelmed
- (for some people) the stomach starts to hurt
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The equations ? It’s for a chemistry class, and he said we need to explain and write down the math problems?
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I think this is because math and chemistry go together and the math problems are science related.

Explanation:

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2 years ago
El gas dióxido de carbono ocupa un volumen de 10, 5 litros a 20°C ¿Cuál será el volumen que ocupará el gas si la temperatura Cel
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Use the reaction 1₂(s) = 12(g), AH = 62.4 kJ/mol, AS = 0.145 kJ/(mol-K), for
Sati [7]

The Reaction is spontaneous when temperature is 430 K. Hence, Option (C) is correct.

<h3></h3><h3>What is Spontaneous reaction ?</h3>

Reactions are favorable when they result in a decrease in enthalpy and an increase in entropy of the system.

When both of these conditions are met, the reaction occurs naturally.

Spontaneous reaction is a reaction that favors the formation of products at the conditions under which the reaction is occurring.

According to Gibb's equation:

ΔG = ΔH - TΔS

ΔG = Gibbs free energy

ΔH = enthalpy change  = +62.4 kJ/mol

ΔS = entropy change  = +0.145 kJ/molK

T = temperature in Kelvin

  • ΔG  = +ve, reaction is non spontaneous
  • ΔG = -ve, reaction is spontaneous
  • ΔG   = 0, reaction is in equilibrium

ΔH - TΔS = 0 for reaction to be spontaneous

T = ΔH / ΔS

Here,

T = 500K

Thus the Reaction is spontaneous when temperature is 500 K.

Learn more about Gibbs free energy here ;

https://brainly.in/question/13372282

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2 years ago
23994Pu + 10n → BCBa + 9138Sr + 3 10n
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A

Explanation:

7 0
2 years ago
Is milk SMELLING sour a physical or chemical property? I know that milk souring is a chemical change, but the question does ment
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It's not chemical because it would have to react to something to change so it is physical change because it is the same thing but it just smells I hope this helped
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3 years ago
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