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3 years ago

6

How does an open system differ from a closed system

1 answer:

Len [333]3 years ago

7 0

Explanation:

A system can be either closed or open; A closed system is a system that is completely isolated from its environment. An open system is a system that has flows of information, energy, and/or matter between the system and its environment, and which adapts to the exchange.

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Problem Page Question It takes to break a carbon-carbon single bond. Calculate the maximum wavelength of light for which a carbo

Marizza181 [45]

This is a incomplete question. The complete question is:

It takes 348 kJ/mol to break a carbon-carbon single bond. Calculate the maximum wavelength of light for which a carbon-carbon single bond could be broken by absorbing a single photon. Round your answer to correct number of significant digits

Answer: 344 nm

Explanation:

$E=\frac{Nhc}{\lambda}$

E= energy = 348kJ= 348000 J (1kJ=1000J)

N = avogadro's number = $6.023\times 10^{23}$

h = Planck's constant = $6.626\times 10^{-34}Js
$

c = speed of light = $3\times 10^8ms^{-1}$

$348000=\frac{6.023\times 10^{23}\times 6.626\times 10^{-34}\times 3\times 10^8}{\lambda}$

$\lambda=\frac{6.023\times 10^{23}\times 6.626\times 10^{-34}\times 3\times 10^8}{348000}$

$\lambda=3.44\times 10^{-7}m=344nm$ $1nm=10^{-9}m$

Thus the maximum wavelength of light for which a carbon-carbon single bond could be broken by absorbing a single photon is 344 nm

5 0

3 years ago

Is Fluorine more electronegative than<br> Hydrogen?

ANEK [815]

Answer:

yes

Explanation:

8 0

3 years ago

Study the diagram.

Yanka [14]

It’s forming An Hurricane

7 0

2 years ago

Read 2 more answers

4 Al(s) + 3 O2(g) --> 2Al2O3 (s) What mole ratio would you use to convert from the given quantity of moles of aluminum to the

ohaa [14]

Answer:

1:2

Explanation:

For every 4 moles of aluminum, there are 2 moles of aluminum oxide, so the mole ratio when converting from aluminum to alunmimum oxide is

2 moles aluminum oxide:4 moles aluminum. This can be simplified to 1:2.

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5 0

3 years ago

(1.21 x 10^-3 + 1.3 x 10^-3) x 6.453 x 10^2 =

Tanya [424]

Answer:

1.61

Explanation:

6 0

2 years ago