When fixed mass of an ideal gas expands at constant temperature, which property of the gas molecule increases?
average number per unit volume
average kinetic energy
average speed
average seperation
average number of collisions per unit time
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The answer should be D because the gas expanded at constant temperature meaning that the gas are more spaced out
This wrong amswers discourage me from using the MySchool site and they find it very hard to correct the answers even after several complains
Myschool Please Correct this, The Answer is D
At Constant Temperature, the Average Kinetic Energy is constant and does not increase, same thing with the collision.
Since the gas molecules expanded, there's an increase in Separation
if the temperature is constant and the gas expands how do the collisions increase per unit time, that just defies the gas laws
it could have been avg. kinetic energy but we're about " mass expansion'; and only collision rate explains the expasion of mass directly. this makes 'D' the most appropriate option.
At Constant Temperature, the Average Kinetic Energy is constant and does not increase, same thing with the collision.
Since the gas molecules expanded, there's an increase in Separation
D is correct
Myschool is 100% correct. As gas expands, volume increases. volume of gas is directly proportional to temperature (Charles' law). Therefore increase in temp lead to an increase in total number of collisions.
im not sure if myschool even read all these complaint bcs on several occasions there are little or no changes
The correct answer is:
D) average separation
When an ideal gas expands at constant temperature:
¥)The average kinetic energy (B) remains the same, as temperature is directly proportional to kinetic energy.
¥) The average speed (C) also remains the same, as it is related to kinetic energy.
¥) The average number of molecules per unit volume (A) decreases, as the gas expands and occupies a larger volume.
¥) The average number of collisions per unit time (E) decreases, as the molecules are farther apart and collide less frequently.
However, the average separation (D) between gas molecules increases, as the gas expands and occupies a larger volume.
bombers
1981 Jamb question from the topic gas laws.
correct answer: E
If u dont get it FORGET .
