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Bezzdna [24]
3 years ago
9

What is the name for temperature changes which involve no heat transfer?

Chemistry
2 answers:
Nina [5.8K]3 years ago
5 0

Adiabatic.

In thermodynamic chemistry, an adiabatic process is defined as the process in which there is no transfer of heat and mass takes place between system and surroundings. The energy will transfer only in the form of work. The condition is expressed as q=0, which means no heat is transferred. It has various applications in the study of thermodynamics reactions.

Ganezh [65]3 years ago
4 0

The name for temperature changes which involve no heat transfer is Adiabatic. Adiabatic is a greek word, that means, “unable to cross”.And it means change in temperature where no heat is transferred.

Adiatic process in thermodynamics means , change in q=o, that is no heat is transferred.

So the answer here is adiabatic that is The name for temperature changes which involve no heat transfer is Adiabatic.


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A 5.00 L sample of helium expands to 12.0 L at which point the
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Answer:

1.73 atm

Explanation:

Given data:

Initial volume of helium = 5.00 L

Final volume of helium = 12.0 L

Final pressure = 0.720 atm

Initial pressure = ?

Solution:

"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"

Mathematical expression:

P₁V₁ = P₂V₂

P₁ = Initial pressure

V₁ = initial volume

P₂ = final pressure

V₂ = final volume  

Now we will put the values in formula,

P₁V₁ = P₂V₂

P₁ × 5.00 L = 0.720 atm × 12.0 L

P₁ = 8.64 atm. L/5 L

P₁ = 1.73 atm

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2 years ago
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Answer:

1. sovent

2. solute

3. solutability

Explanation:

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Charles law describes the relationship of the volume and temperature of gas at a constant mass and pressure. According to this l
zavuch27 [327]

Answer: Charles's law states that the volume of a given amount of gas is directly proportional to its temperature on the kelvin scale when the pressure is held constant. with k being a proportionality constant that depends on the amount and pressure of the gas.

Explanation:

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if you have 3.50 moles of hydrogen and 5.00moles of nitrogen to produce ammonia, witch element is the reactant in excess? 3H2+N2
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Nitrogen is the N and that is what is the element is the reactant in excess.
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Calculate the mass, in grams, of Avogadro's number of fluorine atoms. Enter your answer in the provided box. I g/mol
juin [17]

Answer:

Every substance, whether an element or a compound that contains Avogadro's number, is said to form a mole of it. Therefore for the fluorine atoms that form the Avogadro number we say that we have one mole of fluorine atoms and this weighs 19 g, so 19 g/mol

Explanation:

You can search the F in the Periodic Table where you have the molar mass, 19 g/mol but if you don't have a Periodic Table you can calculate like this:

1 atom of F weighs 19 Da (unified atomic mass unit) and 1 Da is 1,661 x10*-24 g, so try to apply a rule of three, twice.

1 Da ........... 1,661x10*-24 g

19 Da .......... x

x= (19 Da . 1,661x10*-24 g ) / 1 Da = 3,1559x10*-23 g

1 atom F ..............  3,1559x10*-23 g

6,022x10*23 atoms F ............. x

X= (6,022x10*23 atoms F . 3,1559x10*-23 g) / 1 atom F = 19.0048 g

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