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Ket [755]
3 years ago
8

According to the table, which gas would be least efficient-that is, have the least heat-storing ability--for transferring heat f

rom a heat source to a
heat exchanger?
Chemistry
1 answer:
aalyn [17]3 years ago
7 0

Answer:

<u>Oxygen</u>

Explanation:

If we had the same question then the table would've given the specific heat for these gases:

Water (steam) | 2.08

Air (25°C) | 1.01

Oxygen | 0.92

Hydrogen | 14.30

Out of these options, oxygen has the lowest specific heat and so it has the least heat-storing ability of the group.

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Aniline (c6h7n) has a pkb = 9.4. what are the dominant species present in water if the ph is held constant at ph = 8?
anzhelika [568]

The dominant species present in water if the ph is held constant at ph = 8 is C_{6}H_{7}N,H_{3}O^{+}.

<h3>What is ph?</h3>

The pH scale is used in chemistry to determine whether an aqueous solution is basic or acidic. Historically, pH stood for "potential of hydrogen." The pH values of acidic solutions are typically lower than those of basic or alkaline solutions.

A solution's pH is a significant indicator of its chemical composition. The pH can affect how readily available nutrients are, how biological processes work, how bacteria behave, and how chemicals behave. The negative log base 10 of the hydronium concentration is used to define pH. The pH is a logarithmic indicator of how many hydrogen ions are present in a solution. Since pH is measured on a log scale, a pH increase of 1 equates to a 10x increase in the concentration of H+ ions.

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8 0
2 years ago
A strong ,light material made of the element carbon 2 words
Lorico [155]
I would wager a guess that you're talking about microlattice. 
6 0
3 years ago
Although both N2 and 02 are naturally present in the air we breathe, high levels of NO and NO2 in the atmosphere occur mainly in
joja [24]

Answer:

(a) Increasing the temperature adds heat which is a reactant shifting the equilibrium rightwards.

(b) Pressure has no effect since the change in the number of moles is zero.

Explanation:

Hello,

In this case, one could represent the given reaction as:

N_2(g)+O_2(g)+ \Delta _rH \leftrightarrow 2NO

Since it is endothermic. Thus, solving the (a) statement, one identifies the heat as a reagent, that is why the reaction cools down as it progress, therefore, by increasing the temperature, heat is added, that is, a reagent is added, which shifts the equilibrium rightwards, in other words, more NO is produced so its concentration increases.

Furthermore, for the (b) statement, since the change in the number of moles is zero, based on the stoichiometric coefficients as shown below:

\Delta \nu =2-1-1=0

Such value implies that the pressure has no effect on the concentration, taking into account the following form of the law of mass action:

Kp=Kc(RT)^{\Delta \nu }

Thus, since \Delta \nu =0, Kp=Kc, so no effect in concentration is due to the pressure.

Best regards.

6 0
3 years ago
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kozerog [31]

Answer:

they will expand

Explanation:

as they bring out they become red giants then eventually white dwarfs or the scarier options a black hole

4 0
3 years ago
What improvement would you make?
galben [10]
I think is it the flask the bottle cause i had the same thing and i got it right idk maybe :)
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