CP38 – Coffee Cups

Date

• Thursday, April 19th

Previous Class Recap

• Q = mcDT
• what does each term mean?
• what are the units for each part?

New Idea – Calorimetry

• insulating system
• prevents heat exchange with outside world
• objects inside can exchange heat
• DE = 0 so Qin + Qout = 0
• direction of energy matters!
• practice

Homework

• No HW