Physics 2 Feb 9 2018 P 3 Challenge

Physics 2 – Feb 9, 2018 P 3 Challenge – ACT Get out #20 -23 for HMK check FRIDAY (#12 -30) 20 min Today’s Objective: ACT Friday, Review Assignment: Review problems for Studying Test on Tuesday Feb 13 Agenda ACT Friday HMK review Test description Work on Review problems to align with answers (online)

Test description Multiple choice (Heat, simple gas laws, mole/mass, vocabulary, energy flow, distinction between heat and temp, sign conventions…) Conceptual questions (12 x 2 pt) Simple one step problems (7 x 4 pts – show work for partial credit) Problems (6 x 8 pt) Possible subjects: Calorimetry, Phase changes, Combined gas law, Ideal gas law, Root mean square velocity, internal energy, derivation problem, adiabatic process, othermodynamic processes, PV diagram, PV work

Exit Slip - Assignment Exit Slip- a) What is the root mean square velocity of a Krypton atom when a 2. 50 mole sample of pure Kr gas has a temperature of 22 C? b) What is the internal energy of this gas sample? (Molar mass of Kr is 84 g/mol, k. B = 1. 38 x 10 -23 J/K; 1 u = 1. 66 x 10 -27 kg, NA = 6. 022 x 1023; R = 8. 314 J/mol-K) What’s Due? (Pending assignments to complete. ) Review problems for Studying. Test on Tuesday Feb 13 What’s Next? (How to prepare for the next day) Read B p 23 -32 about Thermodynamics