chemistry unit 3 day 5

Do Now
Objective: Students will make connections and draw conclusions on the unit CST.

Questions
1)

Which reaction would cause an increase in entropy? Explain!

A. 2CO(g) + O2(g)  2CO2(g) B. SO2Cl2(g)  SO2(g) + Cl2(g) C. PCl3(g) + Cl2(g)  PCl5(g) D. C2H2(g) + H2(g)  C2H4(g) 2)What is the value for G at 1000 K if H = -220 kJ/mol and S = -0.05 kJ/(molK)? Is this a spontaneous or nonspontaneous reaction?  3) How many degrees will 340 J raise the temperature of 6.8 g of water? (Refer to table of constants for water.) Exit Ticket: Pick up a lab sheet from Ms Friedrich. Complete the pre-lab for Monday. Materials list: 1 plastic bottle (thin plastic, with a rubber stopper) this will hold the hot water 2 rubber bands 1 meter of string 1 piece of foam packaging 1 piece of aluminum foil (30cmx30cm) 5 plastic straws 5 pieces of plastic tubing 5 Popsicle sticks