Which molecules have the highest entropy?

Explanation: Entropy by definition is the degree of randomness in a system. If we look at the three states of matter: Solid, Liquid and Gas, we can see that the gas particles move freely and therefore, the degree of randomness is the highest.

Which compound has the highest entropy?

Gases
Gases have the highest entropy among the three major states of matter. This is because the molecules of gases are free…

What is the entropy of ethane?

Thermodynamic properties

Phase behavior
Heat capacity, cp	68.5 J/(mol K) at −179 °C
Gas properties
Std enthalpy change of formation, ΔfHogas	−83.8 kJ/mol
Standard molar entropy, Sogas	229.6 J/(mol K)

Which has more energy methane or ethane?

Liquid ethane has 70\% more BTUs per cubic foot than methane, and is low in sulphur. It releases less CO2 than gasoline, and you get twice the range with liquified ethane then methane. Cost? On a per gallon basis, you half the fuel energy content of diesel, but it trades for roughly 30 cents a gallon.

Which gases have the highest entropy?

Since b) C4H10 is the most complex molecule, it has the highest entropy.

Which gas has highest entropy?

hydrogen gas
Entropy is the measure of degree of disorder (or randomness) of a system. The greater the disorder in a system, the higher is the entropy. Hence, entropy is highest for hydrogen gas.

Which has a higher entropy for the reaction?

Solids have the fewest microstates and thus the lowest entropy. Liquids have more microstates (since the molecules can translate) and thus have a higher entropy. When a substance is a gas it has many more microstates and thus have the highest entropy. More microstates means greater entropy.

Which has higher entropy MgO or NaCl?

Since gases have so much more entropy than solids, the entropy change of this reaction is positive. One mole of a solid is produced from two moles of ions in aqueous solution….Patterns in the entropies of substances.

Sº (25 ºC)	229.5
Substance	MgO (s)
Sº (25 ºC)	26.9
Substance	NaCl (s)
Sº (25 ºC)	72.13

Does methane or ethane have a higher vapor pressure?

The critical pressure of methane is 46.99 bar, ethane is 48.72 bar and propane is 42.48 bar.

What is N ethane?

Ethane (/ˈɛθeɪn/ or /ˈiːθeɪn/) is an organic chemical compound with chemical formula C. 2H. 6. . At standard temperature and pressure, ethane is a colorless, odourless gas.

What is the difference between ethane and methane?

Methane and ethane are simple organic molecules. These are alkane compounds. The main difference between methane and ethane is that methane contains only one carbon atom bonded to four hydrogen atoms whereas ethane contains two carbon atoms bonded to each other and each carbon atom is bonded to three hydrogen atoms.

Which releases more energy ethane or ethene?

My book explains that since ethane contains a single bond, ethene contains a double bond, and ethyne contains a triple bond, and that when burned ethane releases the most energy because “the fact that the lowest energy is released by ethyne is taken to indicate that this compounds bonds are already in the highest …