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3 years ago

What product(s) would be formed when these are the reactants? C5H12 + O2 (limited)

Chemistry

1 answer:

damaskus [11]3 years ago

7 0

Answer:

Carbon dioxide and water I believe because it is a combustion reaction

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Consider Al at room temperature. Its electron density is n = 18 x 1022 cm-3 and its electrical resistivity is rho = 2.45 μΩ-cm.

Marianna [84]

Answer:

$\tau=1.28968\times 10^{-8}\ s$ is the electron relaxation time

$l=9.6726\times 10^{-4}\ m$ is the mean free path

Explanation:

Given:

electron density of aluminium at room temperature, $n=18\times 10^{22}\ cm^{-3}$

resistivity of aluminium, $\rho=2.45\times 10^{-8}\ \Omega.m$

<u>From the Drude's model we have:</u>

$\tau=\frac{m}{\rho.n.q^2}$

where:

$\tau=$ electron relaxation time

$m=$ mass of a charge

$q=$ magnitude of a charge

Putting respective values for electron:

$\tau=\frac{9.1\times 10^{-31}}{2.45\times 10^{-8}\times 18\times 10^{22}\times (1.6\times 10^{-19})^2}$

$\tau=8.0605\times 10^{-9}\ s$

<u>Mean free path is given as:</u>

$l=v_a.\tau$

where:

$l=$ mean free path

$v_a=$ average velocity of electrons

Now we have the the general value of average velocity of electrons at room temperature:

$v_a=120000\ m.s^{-1}$

So,

$l=120000\times 8.0605\times 10^{-9}$

$l=9.6726\times 10^{-4}\ m$

8 0

3 years ago

The elements of a group have the same number of

kogti [31]

Answer:

hey can you please answer my question please

Explanation:

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8 0

3 years ago

How does the mass of 1 mole of Carbon compare to the mass of 1 mole of Magnesium?

Flauer [41]

Answer:

B one mole of carbon is lighter than one mole of magnesium

5 0

4 years ago

What are 2 ways that convection currents in the oceans distribute the sun's energy?

dezoksy [38]

Answer:

When air in contact with the ocean is at a different temperature than the sea surface, heat transfer by conduction takes place. The ocean also absorbs and stores energy from the sun, and when precipitation falls, it releases heat energy into the atmosphere.

Hope it helps:)

8 0

3 years ago

Read 2 more answers

Which scientist arranged the elements in order of increasing atomic number, rather than increasing atomic mass?

pentagon [3]

Answer:

Henry Moseley

Explanation:

Dmitry Mendeleef and Lothar Meyer proposed a periodic table based on the atomic mass.

They stated a periodic law expressed as "chemical properties of elements are a periodic function of their atomic weights".

But, Henry Moseley in 1900s re-stated periodic law by changing the basis of the law from atomic weight to atomic number.

The present periodic law is stated as "the properties of elements are a periodic function of their atomic number".

6 0

3 years ago