contestada

Please helppppp!


When the gas in a balloon is heated, the balloon expands. What are the correct signs of heat and work for this change?
A. +Q, -W
B. -Q, +W
C. +Q, +W
D. -Q, -W


Things that could help:

W=work     Q= Heat


Q= heat                   Work
+ Heat absorbed    + Work done by
- Heat released      - Work done on