Standar molar entropies from a table:
CH3OH (l): 126.8 J / K*mol
O2 (g): 205.1 J/ K*mol
CO2(g): 213.7 J/K*mol
H2O(g): 188.8 J/J*mol
Now use the coefficients of the reaction and sum the product entropies less the reactant entropies:
4*188.8 + 2*213.7 - 3*205.1 - 2* 126.8 = 313.7 J/mol*K
Answer: option C) +3173.766 J/mol*K
Greenhouse gases released from the burning of fossil fuels are responsible for global warming.
<h3>What is the atmosphere?</h3>
The atmosphere is the region of region of the planet above its surface area where gases envelop the planet.
Based on the effect of greenhouse gases on global warming;
- Planet A has a higher surface temperature due to the higher amount of carbon dioxide in the atmosphere since carbon dioxide is a greenhouse gas.
- Methane is the main constituent of natural gas. Humans increase the contribute to increase in methane gas by raising cattle,
- Pollutants come from both natural sources and human activities.
- Sulfur Dioxide is produced by the combustion of fuels in automobiles. Once in the atmosphere, it combine with water to form acid precipitation.
- Nitrogen and oxygen do not contribute to the greenhouse effect because they are made up of 2 atom molecules that are bound tightly so they CANNOT vibrate to absorb energy.
- Greenhouse gases contribute to global warming by absorbing infrared energy that reflects off Earth's surface and reemitting the energy in all directions. This keeps the infrared energy close to the Earth's surface.
- Most of the greenhouse gases produced come from burning fossil fuels in factories, ships, cars, trains.
Therefore, pollutants such as greenhouse gases are responsible for global warming.
Learn more about greenhouse gases at: brainly.com/question/12684997
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Answer:
*The model should show the carbon compounds enter as carbon dioxide
*The model should show the carbon compounds exit as 3-carbon molecules
Explanation:
In plants, carbon dioxide (CO2) enters the chloroplast through the stomata and diffuses into the stroma of the chloroplast—the site of the Calvin cycle reactions where sugar is synthesized. The reactions are named after the scientist who discovered them, and reference the fact that the reactions function as a cycle.
Answer: Most ionic bonds: PF3
Least ionic bonds PBr3
Most ionic bonds BF3
Least ionic bonds NF3
Most ionic bonds TeF4
Least ionic bonds BrF3
Explanation:
In order to classify the type of bond, we calculate the molecule electronegativity by subtracting the individual electronegativity of each atom.
Keep in mind that a result of 1.7 or more, will let you know that it is an ionic bond ( as you can see in the image)
Let´s check each atom electronegativity: P = 2.1 ; Cl= 3.0; Br= 2.8 ; F =4.0 ; B= 2.0; N=3.0 ; C=2.5; Se=2.4 ; Te= 2.1 ; Br =2.8
Now we start with the first set members : PCl3 = 3.0- 2.1 = 0.9
PBr3 = 2.8- 2.1 = 0.7
PF3= 4.0 - 2.1 = 1.9
as we can see, PF3 has the higher value of electronegativity, more than 1.7 of electronegativity as we have previously mentioned, means it has more character ionic bond than others.
<em>By substracting electronegativities of each atom, you will realize that is pretty easy to rank any member as more or less electronegative.</em>
