Choose all of the processes from below which describe changes which are independ
ID: 892206 • Letter: C
Question
Choose all of the processes from below which describe changes which are independent of the path by which the change occurs.
the elevation increase experienced by a traveller travelling from Grand Isle, LA to Denver, Colorado
the heat evolved when a cube of sugar is oxidized to CO2(g) and H2O(g)
the energy released by the combustion of a gallon of gasoline
the passage of time experienced by a traveller between Grand Isle, Louisiana and Denver, Colorado
the latitude increase experienced by a traveller travelling from Baton Rouge, LA to Anchorage, Alaska
the work required to move a heavy piano up a flight of stairs
the potential energy gained by a satellite as it is shot into a specific orbit
Explanation / Answer
1) Potential energy --- independent .... Total Work for increase - dependent
2) Heat involved, trajectory dependent
3) energy released by combustion depends on its conditions, therefore it may be independent and dependent. ormally it will be carried out in std conditions and P = ct so his will be only change of entropy, independent
4) time is independent (not counting relativistic effects)
5) independent (displacement)
6) work required depends on trajectory, x-axis and y-axis
7) potential energy is indepnendent since only considers y-axis