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13 Dec 2019

Elemental boron can be formed by reaction of boron triiodide with hydrogen according to the following reaction: BI3(g) + 1.5 H2(g) → B(s) + 3 HI(g). If ΔSºrxn = 80.3 J/K, what is Sº in J/mol·K for BI3(g)?

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Collen Von
Collen VonLv2
16 Dec 2019

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Related questions

Calculate ΔGº in kJ/mol for the reaction of boron trichloride with hydrogen using the following balanced equation: BCl3(g) + 1.5 H2(g) → B(s) + 3 HCl(g).

a) Calculate ΔHº (in kJ) for the following reaction at 298 K:

2CO2(g) +4H2O(l) → 2CH3OH(l) + 3O2(g)

b) Calculate ΔSº (in J/K) at 298 K for :

2CO2(g) +4H2O(l) → 2CH3OH(l) + 3O2(g)

c)Use ΔGº =ΔHº -TΔSº to calculate ΔG (in kJ) at 298 K for :

2CO2(g) +4H2O(l) → 2CH3OH(l) + 3O2(g)

d) If the above reaction could be done at 2174 K, what would be your estimate for ΔGº (in kJ) at this elevated temperature? Use ΔGº =ΔHº -TΔSº and assume ΔHº and ΔSº are independent of temperature.

Calculate ΔG∘ for the reaction between hydrogen and Cl2.

Calculate Kp for the reaction between hydrogen and Cl2.

H2 reacts with the halogens (X2) according to the following reaction:
H2(g)+X2(g)⇌2HX(g)
where X2 can be Cl2, Br2, or I2.

Reactant/Product ΔH∘f(kJ/mol) ΔS∘f(J/mol⋠K)
H2(g) 0 130.7
Cl2(g) 0 223.1
HCl(g) -92.3 186.9
Br2(g) 30.9 245.5
HBr(g) -36.3 198.7
I2(g) 62.42 260.69
HI(g) 26.5 206.6

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