Choose all of the processes from below which describe changes which are independ
ID: 810925 • Letter: C
Question
Choose all of the processes from below which describe changes which are independent of the path by which the change occurs.
a. the elevation increase experienced by a traveller travelling from Grand Isle, LA to Denver, Colorado
b. the work generated by the body of an athlete as it metabolizes the sucrose in a cube of sugar
c. the odometer mileage increase observed by a traveller travelling from Louisiana to Canada
d. the kinetic energy aquired by a bullet as it reaches a specific speed
e. the heat generated by a car engine as it burns a gallon of gasoline
f. the heat generated by the body of a student during a chemistry exam
g. the latitude increase experienced by a traveller travelling from Baton Rouge, LA to Anchorage, Alaska
Explanation / Answer
a. the elevation increase experienced by a traveller travelling from Grand Isle, LA to Denver, Colorado
The elevation is the difference between initial and final height. Hence, the elevation is independent of path.
d. the kinetic energy aquired by a bullet as it reaches a specific speed
The kinetic energy is expressed as K.E. = 1/2 * m * v2 . Hence, kinetic energy is independent of path.
e. the heat generated by a car engine as it burns a gallon of gasoline
The heat generated from a gallon of gasoline is independent of the path length. It depends upon the calorific value of Gasoline.
g. the latitude increase experienced by a traveller travelling from Baton Rouge, LA to Anchorage, Alaska.
The change in lattitude depends upon the initial and final lattitude only.