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3 years ago

Which type of bond is present in hydrogen sulfide

Chemistry

2 answers:

zalisa [80]3 years ago

6 0

Bonds formed between atoms that have a difference in electronegativity lower than the ionic counterparts are polar covalent bonds. In H2S, the S atom is bonded to 2 H atoms.

abruzzese [7]3 years ago

3 0

Answer:

A. electronegativity < 1.0

Explanation:

Hydrogen --> electronegativity value is 2.1

Sulfur --> electronegativity value is 2.5

∆E, the electronegativity difference is 2.5 - 2.1 = 0.4

So, It is a non polar covalent bond present in $H_2 S$

Examples :

The electronegative values of H is 2.1

F is 4.0

O is 3.5

N is 3.0

∆E value of HF Hydrogen bond is

4.0 - 2.1 = 1.9

∆E value of H2O Hydrogen bond is

3.5 - 2.1 = 1.4

∆E value of NH3 Hydrogen bond is

3.0 - 2.1 = 0.9

∆E value between 0.5 to 1.7 is a polar covalent bond

∆E value btween 0 to 0.4 is a non polar covalent bond

∆E above 1.7 is an ionic bond

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3 years ago

Compute the values of the diffusion coefficients for the interdiffusion of carbon in both α-iron (BCC) and γ-iron (FCC) at 900°C

bogdanovich [222]

Answer:

α-iron (BCC) has faster diffusion rate because of lower values in activation energy and pre-exponential value.

Explanation:

Taking each parameters or data at a time, we can determine the values/a constant for each parameters in the diffusion coefficient equation.

For α-iron (BCC), the diffusion coefficient = pre-exponential value,Ao × e^( -Activation energy,AE)/gas constant,R × Temperature.

Converting the given Temperature, that is 900°C to Kelvin which is equals to 1173.15K.

For α-iron (BCC), the pre-exponential value, Ao = 1.1 × 10^-6, and the activation energy, AE = 87400.

Thus, we have that the diffusion coefficient = 1.1 × 10^-6 × e(-87400)/1173.15 × 8.31.

Diffusion coefficient for α-iron (BCC) = 1.41 × 10^-10 m^2/s.

Also, For the γ-iron (FCC), the pre-exponential value, Ao = 2.3 × 10^-5 and the activation energy, AE = 148,00.

From these values we can see that both the exponential value, Ao and the activation energy for γ-iron (FCC) are higher than that of α-iron (BCC).

Thus, the diffusion coefficient for the γ-iron (FCC) = 2.3 × 10^-5 × e ^-(14800)/8.31 × 1173.15.

Then, the diffusion coefficient for the γ-iron (FCC) = 5.87 × 10^-12 m2/s.

Therefore, there will be faster diffusion in α-iron (BCC) because of lower activation energy and vice versa.

6 0

3 years ago

If you have 3 moles of a gas at a pressure of 2.5 atm and a volume of 8 liters, what is the temperature?

fomenos

Answer:

Explanation:

pv=nrt

2.5×1.01×10^5×8×10^-3=3×8.31×T

3 0

3 years ago

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Predict whether each of the following oxides is ionic or molecular: SnO2, Al2O3, CO2, Li2O, Fe2O3, H2O

KatRina [158]

Answer:

Explanation:

Ionic compounds are formed by combining a metal and a nonmetal.

Molecular compounds are formed by two or more nonmetals.

3 0

4 years ago

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