Question

A balloon is fitted over the open end of a glass beaker that contains water.

The beaker is placed over a flame, which heats the water. At the same time,

the balloon is squeezed, so that it deflates. What are the correct signs for the

heat and work changes to the beaker and balloon system?

O A. -Q.+w

O B. +Q,+W

O C. -Q,-W

O D. +0. -w

Answer 1

D. +Q, -W.