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lorasvet [3.4K]
3 years ago
14

How can an iceberg (temperature=0 Celsius) have more energy than a burning match head (temperature=230 Celsius)?

Chemistry
1 answer:
jok3333 [9.3K]3 years ago
5 0
Temperature is the average energy of each particle and does not really give you an indication of the total internal energy.  That being said, total internal energy is the sum of all of the molecule's energy in a given object so it would make sense that an ice berg (having a huge number molecules at a lower average energy) would have more internal energy than a match head (having a much smaller number of molecules at a higher average energy).  Basically, the fact that ice bergs tend to be huge and contain much more molecules than a match head, means that ice bergs can have a larger total internal energy which means they store more energy.

I hope this helps.
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How much energy would be released as an electron moved from the n=4 to the n=3 energy level?
Thepotemich [5.8K]

The energy released when electron move from n=4 to n=3 is 0.66 eV

We know that in an atom energy of nth state is

                                     E_n =  -13.6/n^{2}  eV

where n is the energy level

Therefore,

                   E_4 = -13.6/4^{2} \\E_3  = -13.6/3^{2}

Thus, E_4  =   -0.85eV

         E_3  =  -1.51eV

Therefore, total mount of energy released in moving electron from n=4 to n=3 is given by -

                                       E_4 -E_3

                                   =  -0.85 - ( -1.51)

                                   = 0.66eV

To know more about energy released in electron transition

brainly.com/question/8384785

#SPJ4

8 0
2 years ago
You have 100 grams of rubidium bromide (RbBr). How many moles do you have?
Margarita [4]

Answer:

a) 0.61 mol

Explanation:

165.3718 g Rubidium Bromide = 1 mol

100 g  Rubidium Bromide =  1/165.3718  x   100

                                          =  0.61 mol

6 0
3 years ago
Read 2 more answers
A student sets up the following equation to convert a measurement. (The stands for a number the student is going to calculate.)
Crank

Answer:

0.090 J/(mmol·°C) × (1000 mmol/mole × 1 kJ/(1000 J)) = 0.090 kJ/mole

Explanation:

The unit of conversion from kilo-Joules to Joules is given as follows;

1000 Joules = 1 kilo-Joule

The unit of conversion from milimoles to moles is given as follows;

1000 milimoles = 1 Mole

Therefore, we have

The value of the given expression is 0.090 J/(mmol·°C) × 1000 mmol/mole × 1 kJ/(1000 J) = 0.090 kJ/mole

0.090 J/milimole = 0.09 kJ/mole.

3 0
2 years ago
Which of the following describes scientists?
serious [3.7K]
I believe the answer I’d D

Hope it helps
3 0
3 years ago
How does the chemical formula for the nitrite ion differ from the chemical formula for the nitrate ion?
Darina [25.2K]
The nitrite ion has one less oxygen than the nitrate ion. Nitrate is NO3-1 while the nitrite ion is NO2-.
8 0
3 years ago
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