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Usimov [2.4K]
3 years ago
10

What is meant by Critical temperatue?

Chemistry
1 answer:
yuradex [85]3 years ago
4 0

Answer:

The critical temperature of a substance is the temperature at and above which vapour of the substance cannot be liquefied, no matter how much pressure is applied.

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HELP WHOEVER ANSWERS WILL BE MARKED BRAINLIEST
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7 0
2 years ago
What is chlorine's atomic number and mass
makkiz [27]

\red{⭐hello my \: friend!}

chlorine's atomic number and mass :

35,453 u

\blue{⭐have  good  studies!}

☝️follow the rules of brainly!

8 0
3 years ago
What is water's density at 93 ∘C? Assume a constant coefficient of volume expansion. Express your answer with the appropriate un
Ganezh [65]

Answer:

982.5 kg/m³

Explanation:

When the temperature of a fluid increases, it dilates, and because of the variation of the volume, it's density will vary too. The density can be calculated by the expression:

ρ₁ = ρ₀/(1 + β*(t₁ - t₀))

Where ρ₁ is the final density, ρ₀ the initial density, β is the constant coefficient of volume expansion, t₁ the final temperature, and t₀ the initial temperature.

At t₀ = 4°C, the water desity is ρ₀ = 1,000 kg/m³. The value of the constant for water is β = 0.0002 m³/m³ °C, so, for t₁ = 93°C

ρ₁ = 1,000/(1 + 0.0002*(93 - 4))

ρ₁ = 1,000/(1+ 0.0178)

ρ₁ = 982.5 kg/m³

3 0
3 years ago
What is the chemical symbol for iron
Genrish500 [490]
The atomic symbol for Iron is Fe, as the Latin word for Iron is <em>ferrum</em>.
7 0
3 years ago
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What material do we get from trees that is burnt as a fuel and releases carbon dioxide into the
HACTEHA [7]

Answer:

not quite sure what you meant by the question but I think the answer you're looking for is biomass? not sure though

3 0
2 years ago
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