Calculate the average speed of a complete round trip in which the outgoing 220 km is covered at 96 km/h , followed by a 1. 0-h lunch break, and the return 220 km is covered at 62 km/h.

if i am correct, your answer choices are:

a. the temperature remains constant

b. the temperature increases at a constant rate

c. heat flows at a constant rate into the system

d. heat flows at a constant rate out of the system

e. no heat flows into or out of the system

if so, then the answer is e. no heat flows into or out of the system.