3 years ago

Why is the atomic model the foundation for chemistry?

Chemistry

1 answer:

Elan Coil [88]3 years ago

8 0

Answer:

Explanation:

You might be interested in

Calculate the value of the diffusion coefficient D (in m2/s) at 547°C for the diffusion of some species in a metal; assume that

svetlana [45]

Answer : The value of diffusion coefficient is, $2.97\times 10^{-16}m^2/s$

Explanation :

Formula used :

$D=D_o\times \exp \left(-\frac{Q_d}{RT}\right )$

where,

D = diffusion coefficient = ?

$D_o$ = $5.6\times 10^{-5}m^2/s$

$Q_d$ = $177kJ/mol$

R = gas constant = 8.314 J/mol.K

T = temperature = $547^oC=273+547=820K$

Now put all the given values in the above formula, we get:

$D=5.6\times 10^{-5}m^2/s\times \exp \left(-\frac{177kJ/mol}{(8.314J/mol.K)\times (820K)}\right )$

$D=2.97\times 10^{-16}m^2/s$

Thus, the value of diffusion coefficient is, $2.97\times 10^{-16}m^2/s$

6 0

3 years ago

An boron isotope consist of 5 protons 5 electrons and 6 neutrons its mass number is ?

vichka [17]

10.811 atomic mass units

8 0

3 years ago

Equilibrium reaction chromate

qaws [65]

Could you further explain what you are asking

8 0

3 years ago

Please help me with this question.<br>ps: kindly include a drawing.

KATRIN_1 [288]

Answer:

gallium has orthorhombic and forms ionic bonds with metals

Explanation:

4 0

3 years ago

Hello! Can you please help me with this because I don’t get it at all. Thanks.

denpristay [2]

Answer:

Nov 28, 2019 - These templates were designed to help get you started. ... of each opportunity is clear to see, because the ones you send match not only my interests but my abilities. What you do is really motivating and keeps me uplifted in my job ... to thank you for all the support you've shown me throughout my career, ...

Explanation:

4 0

3 years ago

Read 2 more answers