Big Bang Scenario with Atoms and Molecules: Exploring the Equation

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In summary, your calculations and assumptions provide some insights into the early universe, but it is important to consider the limitations and complexities of the Big Bang scenario.
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BIG BANG SCENARIO WITH ATOMS AND MOLECULES - NOT INDIVIDUAL QUARKS - AT BEGINNING

Equation for an ideal gas:

PV = nRT

T = 10^10 after one second – according to steven Weinberg. I shall assume that T was close to this value when t = 0. R = 8, n, the number of moles of hydrogen in universe = 10^55

initial radius of universe = 10 ^ 24 metres minimum because (1 – 2GM/ r c ^ 2) ^1/2

cannot be negative or else imaginary square root results.

volume of universe = 10 ^ 72 m ^ 3

therefore pressure at time of big bang = 10^ - 7 N m^ - 2

there were about 10 ^ - 27 kg m ^ - 2 at the time of big bang.

Acceleration = force / mass

so acceleration of 1 m^2 of mass of 10^ -27 kg was 10 ^ -7 / 10 ^ - 27

this is 10 ^ 20 metres per second per second.

This means universe was moving close to speed of light after 10 ^ - 12 seconds.

It took 10 ^ 18 seconds to reach current size – this is 10 billion years.

Initially atoms were half a metre apart so we would expect to see evidence of
this in the cosmos at wavelengths of 1000 metres( REDSHIFT)

If we take initial radius of universe, 10^24 metres, and current radius 10^26 metres
we should find that:

[ ( final radius ) ^ 4 divided by ( initial radius ) ^ 4 ] x current cmbr temperature =
initial temperature of universe.

( 10 ^ 26 ) ^ 4 / ( 10 ^ 24) ^ 4 x 2.7 = 10 ^ 8 which is close to Weinberg’s
temperature of 10 ^ 10 K and could be closer if I had used more accurate numbers.
 
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Thank you for sharing your thoughts and calculations on the Big Bang scenario. I would like to provide some additional insights and clarifications.

Firstly, I would like to address your statement about the initial temperature of the universe being close to 10^10 K. While this is a commonly accepted value, it is important to note that this is an estimate based on theoretical models and observations. The exact temperature at the beginning of the Big Bang is still a subject of ongoing research and debate.

Furthermore, I would like to point out that the ideal gas equation you have used, PV = nRT, is a macroscopic equation that describes the behavior of a large number of particles (atoms or molecules) in a given volume. At the beginning of the Big Bang, the universe was in a highly dense and energetic state, where individual particles such as atoms and molecules did not exist yet. Instead, it was a soup of fundamental particles like quarks and leptons. Therefore, the ideal gas equation may not accurately describe the conditions at the beginning of the Big Bang.

Moreover, the concept of pressure and acceleration in the early universe is not well defined. In the first fractions of a second after the Big Bang, the universe underwent a period of rapid expansion known as inflation, during which the universe expanded faster than the speed of light. This makes it difficult to apply classical physics concepts like pressure and acceleration to the early universe.

Finally, I would like to mention that the redshift observed in the cosmic microwave background radiation (CMB) is not solely due to the initial separation of atoms after the Big Bang. The CMB also experiences redshift due to the expansion of the universe, which has been ongoing since the Big Bang.

In conclusion, while your calculations and assumptions are interesting, it is important to keep in mind that our understanding of the Big Bang is still evolving, and we continue to refine and improve our theories and models. Thank you for bringing up this topic for discussion.
 

1. What is the Big Bang Scenario?

The Big Bang Scenario is a scientific theory that explains the origin and evolution of the universe. It proposes that the universe began as an extremely hot and dense point, and has been expanding and cooling ever since.

2. How do atoms and molecules fit into the Big Bang Scenario?

Atoms and molecules are the building blocks of matter in the universe. According to the Big Bang Scenario, these particles were formed after the initial expansion of the universe cooled down enough for protons, neutrons, and electrons to combine and form atoms. Over time, these atoms and molecules clumped together to form stars, galaxies, and eventually, planets.

3. What is the equation that is being explored in the Big Bang Scenario?

The equation commonly associated with the Big Bang Scenario is the Friedmann equation. This equation relates the rate of expansion of the universe to the amount of matter and energy present in the universe. Scientists use this equation to make predictions about the past and future behavior of the universe.

4. How is the Big Bang Scenario supported by scientific evidence?

The Big Bang Scenario is supported by a variety of scientific evidence, including the observation of the cosmic microwave background radiation, the abundance of light elements in the universe, and the redshift of galaxies. These observations are consistent with the predictions of the Big Bang Scenario and provide strong evidence for its validity.

5. Are there any alternative theories to the Big Bang Scenario?

Yes, there are alternative theories to the Big Bang Scenario, such as the Steady State theory and the Inflationary theory. However, the Big Bang Scenario is currently the most widely accepted and supported explanation for the origin and evolution of the universe.

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