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2 years ago

A horizontal tube carrying hot water has a surface temperature of 355.4 K and an outside diameter

Chemistry

1 answer:

Alex_Xolod [135]2 years ago

5 0

Answer:

The natural convection heat loss is 185.5 W

Explanation:

The equation for convection heat loss is:

Q/t = k*A*(T1-T2)/d

in which: Q/t is the convection heat loss, k is 0.6 W/mK for water, A is the are of the tube which corresponds to (πd^2)/4. d= 25.4 mm or 0.0254 m. The area is 5.06 m2. The difference in temperature is given by the problem: 355.4 K - 294.3 K. d for the convection heat loss is the thickness of the barrier which is 1 m of the length of the pipe.

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A balloon, whose volume at 23°C is 535 mL, is heated to 46°C. Assuming the pressure and amount of gas remain constant, what is t

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3 years ago

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Mary thinking her astrological sign, Leo, is a perfect fit for her personality is a belief in pseudoscience because there is not scientific evidence confirming such beliefs.
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2 years ago

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nadezda [96]

Answer:

The answer to your question is Argon

Explanation:

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2 + 2 + 6 + 2 + 6 = 18

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If 15 grams of Carbon dioxide is produced in a chemical reaction, how many grams of Carbon must be consumed in the reaction if w

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4.1g

Explanation:

Given parameters:

Mass of carbon dioxide = 15g

Mass of oxygen gas = 11g

Unknown:

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Solution:

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To solve this problem from the balanced equation, we have to use the amount of product formed and work to Carbon. This is because, we are sure of the amount of carbon dioxide formed but the amount of the given oxygen gas used is not precise.

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1 mole of CO₂ is produced from 1 mole of C

0.34mole of CO₂ will produce 0.34mole of C

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Number of moles brainly.com/question/1841136

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2 years ago

How many Joules of heat would be required

mote1985 [20]

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<h3>Further explanation</h3>

Given

mass of H₂O=5 g

Required

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The heat to change the phase can be formulated :

Q = m.Lf (melting/freezing)

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Input given values in formula :

$\tt Q=5\times 334=\boxed{\bold{1,670~J}}$

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