CHM 2096 Lecture 2: Lecture 2

What are the signs for heat and work for a gas that cools and, at the same time, is being compressed?

Choose one:q=+ w=−q=+ w=−q=− w=+q=− w=+q=− w=−q=− w=−q=+ w=+q=+ w=+

Part 2 (1 point)

A gas cools, and the heat transferred in the process is 1550 J. At the same time it is compressed, and the work involved in compression is 640.0 J. Calculate the change in internal energy for the gas in joules.