Calculate the work (in J) done on the system for each of the following examples (the system is given in italics). Specify the sign of the work.
a. A box of groceries weighing 10 kg is carried up three flights of stairs (10 m total).
b. A muscle of 1 cm2 cross section and 10.0 cm length is stretched to 11.0 cm by hanging a mass on it. The muscle behaves like a spring that follows Hooke’s Law. The Hooke’s Law constant for the muscle was determined by finding that the muscle exerts a force of 5.00 N when it is stretched from 10.0 cm to 10.5 cm.
c. The volume of an ideal gas changes from 1.00 L to 3.00 L at an initial temperature of 25°C and a constant pressure of 1 bar.
d. The volume of an ideal gas changes from 1.00 L to 3.00 L at an initial temperature of 25°C and a constant pressure of 0.1 Pa.
e. The volume of an ideal gas changes from 1.00 L to 3.00 L at a constant temperature of 25°C, and the expansion is done reversibly from an initial pressure of 1 bar
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.