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2 years ago

5

Despite the fact that the partial pressure difference is so much smaller for co2, why is there as much co2 exchanged between the

alveoli and blood as there is o2, ?

1 answer:

Snezhnost [94]2 years ago

7 0

This is due to the solubility of CO₂ in blood is more than the solubility of Oxygen in blood

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This is an example of <br> A. Reflection<br> B. Diffraction<br> C. Refraction

lord [1]

Answer:

I believe it is B (if you get it wrong it's my fault)

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2 years ago

Houses with carpet are much quieter than houses with tile or hardwood floors because of sound wave

malfutka [58]

Greetings I am DemonicPresence, the answer would be A.

7 0

3 years ago

Dolton’s theory states that atoms are the smallest possible parts of elements. In a chemical reaction, atoms will be

Alenkasestr [34]

Answer:

Joined together to form compounds or rearranged.

Explanation:

Dalton's Theories

-atoms from two or more different elements join together to form compounds in chemical reactions.

-chemical reactions rearrange atoms, but in specific compounds the atoms of different elements always combine in the same way.

3 0

3 years ago

A sheet of polyethylene 1.5-mm thick is being used as an oxygen barrier at a temperature of 600K. If the flux is 2.48 x 10-5 kg/

Eddi Din [679]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The concentration of high-pressure side is $C_1 = 0.722 \ kg/m^3$

Explanation:

From the question we are told that

The thickness of the polyethylene is $d = 1.5 \ mm = 0.0015 \ m$

The temperature is $T = 600 \ K$

The flux is $JA = 2.48 *10^{-5} \ kg/m^2\cdot s$

The concentration on the low-pressure side is $C_2 = 0.5 \ kg/m^3$

The initial diffusivity is $D_o = 6.2 *10^{-4} \ m^2 /s$

The activation energy for diffusion is $Q_d = 41 \ kJ /mol = 41*10^3 J /mol$

Generally the diffusivity of the oxygen at 600 K can be mathematically evaluated as

$D = D_o * e^{- \frac{Q_d}{R * T } }$

substituting values

$D = 6.2*10^{-4} * e^{- \frac{41 *10^3}{8.314 * 600 } }$

$D = 1.671 *10^{-7} \ m^2 /s$

Generally the flux is mathematically represented as

$JA = D * \frac{C_1 -C_2}{d}$

Where $C_1$ is the concentration of oxygen at the higher side

So

$C_1 = d * \frac{JA}{D} + C_2$

substituting values

$C_1 = 0.0015 * \frac{2.48*10^{-5}}{1.671*10^{-7}} + 0.5$

$C_1 = 0.722 \ kg/m^3$

6 0

2 years ago

The folded mountains in this model form at what type of plate boundary?<br> PLEASE HELP FAST

jeyben [28]

The type of plate boundary is Convergent plate boundry.

<u>Explanation:</u>

Fold mountains mainly formed by the results of overlapping on layers in the top part of the crust. These mountains create while two tectonic plates push towards one another. When two opposed plates are shoving within each other is called Convergent plate boundry.

The drifting plates and continents get collided and the gathered rock layers will fall and fold, similar to a tablecloth pushed across the table. Since the crust has collided and the new crust formed by the rocks. The formed mountains are normally bigger in its length and shorter in breadth.

3 0

2 years ago