Density = mass/V = MW P / RT
density = 64.1 g/mol X 1.2 atm / 0.0821 Latm/molK (271K) = 3.46 g/L
The only molecules that can be considered "organic" are methane and carbon dioxide, but these are abiotic and not considered fundamental in the biochemical molecular structure of the first organism.
The likely designation of the list of molecules is "primordial soup," but the proposition that these somehow collected, merged and formed anything associated with the first organism is naturalist mythology, as there are no naturalist processes capable of selectively formulating the required biochemical assemblies needed to construct a functioning organism.
Abiogenesis, the naturalist myth of origin of life is based on chemical evolution, as the Darwinian myth of "warm little ponds," Oparin-Haldane primordial soup, and Miller-Urey test tube goo. No naturalist processes can assemble all the required biochemically required compounds required for the the origin of life.
Based on the ideal gas relation:
PV = nRT
where P = pressure ; V = volume ; T = temperature
n = number of moles; R = gas constant = 0.0821 L atm/mol-K
Step 1: Find the number of moles of O2
n = PV/RT = 1 * 3.90/0.0821*273 = 0.1740 moles
Step 2: Calculate the molecules of O2
Now, 1 mole of O2 corresponds to 6.023 * 10²³ molecules of O2
Therefore, 0.1740 moles of O2 corresponds to-
0.1740 moles of O2 * 6.023*10²³ molecules of O2/1 mole of O2
= 1.048 * 10²³ molecules of O2
(Answer) (d) Chemical reaction rates vary with the conditions of the reaction, but nuclear decay rates do not.
Rate of a chemical reaction refers to rate of formation of products from reactions during a chemical reaction. The rates of chemical reactions depend on various factors such as temperature, pressure, concentration of reactants, presence of catalyst etc. For this reason, chemical reaction rates vary with the conditions of the reaction.
Nuclear decay rate refers to the constant ratio of the number of atoms of radioactive nucleus that decay during a certain interval of time to the total number of radioactive atoms at the beginning of the time interval. Nuclear decay rates are constant and do not vary with the conditions of the reaction.
