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denpristay [2]
3 years ago
9

Where do you measure the temperature when checking furnace temperature rise?

Chemistry
1 answer:
Maksim231197 [3]3 years ago
4 0

Answer:

The rise in Air temperature is the difference between heated supply of air from the furnace and temperature of the return.

Explanation:

The temperature of the furnace should be kept within the plates range. Temperature rise of the furnace should be measured while the installation. The outside air temperature of the furnace is easy to measure whereas inside temperature is more difficult to measure. An excessive temperature rise in the furnace could cause combustion problem.

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Scientists believe that the Earth's orbit gradually changes from being elliptical to being nearly circular and then back to elli
IRISSAK [1]

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  solar energy received at the Earth's closest and farthest locations from the sun

Explanation:

The largest effect on climate is due to changes in received solar radiation. Changes in gravity or magnetic field have not been shown to have any significant effect on climate. Day/night differences are due to the tilt of the earth's axis, and have nothing to do with earth's orbit eccentricity.

The more circular the Earth's orbit, the less the difference in solar energy received at the Earth's closest and farthest locations from the sun.

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3 years ago
Calculate [H3O+] and [OH−] for each of the following solutions at 25 ∘C given the pH.<br> pH= 2.89
dimaraw [331]

Answer: The value of [H_{3}O^{+}] is 0.0012 M and [OH^{-}] is 1.02 \times 10^{-14}.

Explanation:

pH is the negative logarithm of concentration of hydrogen ion.

It is given that pH is 2.89. So, the value of concentration of hydrogen ions is calculated as follows.

pH = - log [H^{+}]\\2.89 = - log [H^{+}]\\conc. H^{+} = 0.0012 M

The relation between pH and pOH value is as follows.

pH + pOH = 14

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pOH = 14 - 0.0012 = 13.99

Now, pOH is the negative logarithm of concentration of hydroxide ions.

Hence, [OH^{-}] is calculated as follows.

pOH = - log [OH^{-}]\\13.99 = - log [OH^{-}]\\conc. OH^{-} = 1.02 \times 10^{-14} M

Thus, we can conclude that the value of [H_{3}O^{+}] is 0.0012 M and [OH^{-}] is 1.02 \times 10^{-14}.

6 0
3 years ago
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Answer:

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A substance that displaces most compounds is known as a universal solvent. Because it dissolves more chemicals than any other solvent, water is known as the universal solvent.

<h3>What chemicals lack solvability?</h3>

Sand, plastic, wood, metal, glass, and cloth are examples of insoluble materials. At standard conditions of pressure and temperature, these compounds never dissolve in water or any other solvent. Other examples of insoluble materials are sugars and inorganic salts.

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