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mamaluj [8]
4 years ago
10

When mixing calcium chloride and phonel red why does it get hot

Chemistry
1 answer:
Tema [17]4 years ago
5 0
Because it’s an exothermic reaction.
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Ludwig Boltzmann developed a model that relates entropy to _________.
kifflom [539]

Answer:

the number of possible configurations of the locations and energies of the atoms or molecules that comprise a system

Explanation:

Ludwig Boltzmann was the first to suggest that the concept of entropy could be calculated by examining the positions and energies of molecules. This was developed into an equation, known as the Boltzmann equation, which relates entropy to the number of microstates (W):

S = k ln W

where k is the Boltzmann constant (1.38 x 10-23 J/K), and W is the number of microstates.

Microstates was used to imply the number of different possible arrangements of molecular position and kinetic energy at a particular thermodynamic state. Therefore any process that gives an increase in the number of microstates therefore increases the entropy. Hence the answer.

5 0
4 years ago
What does the arrangement of the periodic table help scientists see?
alexandr1967 [171]

option A is a precise one to be selected!

4 0
3 years ago
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Can a element be a metal and a non metal
Dmitry [639]

Answer:

no

Explanation:

because in the periodic table there is a section for metals and a section for non metals. 'non' implies that it is not a metal and having an element be both metal and non metal would be contradictory.

6 0
4 years ago
Why do batteries stay fresh longer if kept in a fridge
blagie [28]
Because it is......... who knows cause I don't
4 0
3 years ago
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An ideal gas in a closed container initially has a volume V and Temperature T the final tempera is 5/4T and the final pressure i
Anettt [7]

Answer:

V_2 = \frac{5V}{8}

Explanation:

I am assuming you are saying what is the final volume of the gas

Known :

Initial volume (V1) = V

Initial temperature (T1) = T

Final temperature (T2) = 5/4 T

Initial pressure (P1) = P

Final pressure (P2) = 2P

<u>Wanted: Final volume (V2)</u>

<u />

<u />\frac{P_1V_1}{T_1} = \frac{P_2V_2}{T_2}\\\frac{PV}{T} = \frac{(2P)V_2}{(5/4)T}\\\frac{V}{1} = \frac{(2)V_2}{5/4}\\5/4V = 2V_2\\\\V_2 = \frac{5V}{8}

5 0
2 years ago
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