Question
Asked Mar 7, 2020
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Tb =  ______ºC   

Predict the normal boiling point of hydrogen peroxide (H202) from the following data:
AH°, kJ/mol
AS°, J/(mol•K)
H2O2(1)
|-187.8
110
233
|-136.3
H2O2(g)
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Predict the normal boiling point of hydrogen peroxide (H202) from the following data: AH°, kJ/mol AS°, J/(mol•K) H2O2(1) |-187.8 110 233 |-136.3 H2O2(g)

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Expert Answer

Step 1

Given data,

Chemistry homework question answer, step 1, image 1

When hydrogen peroxide (H2O2) starts boiling, liquid hydrogen peroxide (H2O2) change into gas hydrogen peroxidChemistry homework question answer, step 1, image 2

The enthalpy and entropy are related to each otherwise equation shown below.

Chemistry homework question answer, step 1, image 3

Step 2

At boiling point, amount of liquid hydrogen peroxide (H2O2) change into gas is equal to the amount of gas hydrogen peroxide (H2O2) change into liquid. Therefore, liquid hydrogen peroxide (H2O2) is in equilibrium with gas hydrogen peroxide (H2O2) and ΔGo = 0.

Therefore,

Chemistry homework question answer, step 2, image 1

Step 3

Substitute the given data in equation (1).

Chemistry homework question answer, step 3, image 1

The conversion from K to oC to is shown below.

...

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