In a closed system the entropy is constant.
The entropy of the system increases during the sublimation of I2(s) to I2(g) because the randomness and disorder of the gas phase is higher compared to the solid phase. Therefore, the entropy of the reaction is positive.
Reactions that increase the moles of gas will increase in entropy.
The entropy increases, as going from a solid to a gas increases disorder or randomness in the system. This is because gases have more freedom of movement and energy compared to solids.
The entropy increases in this reaction, as the solid reactant (I2(s)) is becoming a gas (I2(g)), which represents a higher degree of disorder and randomness on a molecular level. The increased entropy contributes to the spontaneity of the reaction.
if there is an increase in the number of gas molecules , then ^S > 0
When a gas expands into a vacuum, the entropy of the gas increases. This is because the gas molecules have more freedom to move around and occupy a larger volume, leading to a more disordered state and higher entropy.
they turn into gas
It moves Faster.
When a noble gas is heated, its molecules move faster (this is the same as saying that the gas heats up).
The speed of the gas particles will increase as they are heated. That is why the pressure in a container increases. The particles are hitting the walls of the container with more force as they are heated.
entropy and energy
Its entropy increases.
it expands and/or its pressure rises, depending on conditions.
they tend to vibrate
The pressure is higher.
Decomposed to produce PbO and oxygen gas!
The entropy of the system increases during the sublimation of I2(s) to I2(g) because the randomness and disorder of the gas phase is higher compared to the solid phase. Therefore, the entropy of the reaction is positive.