Question

5. 1792 Russell Biven decides to make some iced tea. He starts with 6 liters of water at 17°C. Assume that the properties (heat coefficients, density, etc) for iced tea are the same as for water. Ignore the pot when making calculations. Example 1 Example 2 MIX NEN NTH H Part Chk History Description Answer Russell starts by bringing the 6 liters of water to a boil. How much heat A: needs to be added to bring the water 12.09 10^6 to 100°C without converting it to ] steam C: 2085 ki (include units with answer) V tries: 1 Hints: D.D Russell gets distracted watching Ken Schwall and continues heating the pot. He adds 1250 kJ of additional heat to the 100°C system. Assuming - A: 9.22 C: 9.216 the syster remains at 100°C, what percentage of the water boils away? (%) #tries: 1 Dale Hints: 1,0 Russell takes the remaining water off the stove and adds 0.6 kg of tap water at 11°C and 2 tea bags to the pot. What is the equilibrium temperature (°C, ignore the temperature change of the tea bags) 4.78 pts. 1o | |triet 25 ty penalty n + % h. Hints: 10 ✓ D. Russell likes his tea at 8°C. How much ice at -10°C does Russell need A: 5.4 kg to add to bring the tea to SPC? C: 5.431 kg (include units with answer) + tries: 1 2 1 sim h. Hints: 1.0 .78 pr.865 E. What is the final volume of iced tea 1 that Russell ends up with? (include units with answer) 4 Format Chark #tries: 1

Hint for Part C:

Answer 1

Q = mSA9 Q = 6X4186x6100-17) Q = 2.09x10ºJ ® Percentage of water boil an q x100 gueres - hains en X100 = Lm =0.5519 = 1250 x103 x100 540x418686 iles XLOD = 9:22% © tm = (m-m')st, tm s tz (m-mitm, is tm = [5.45x100 +0.6x113 b.os - tm= alo2cl mis (83-6-8) = m. 5e() + m; Li + m; (8)s; 6.6x4186(75.6) = m;[20930 + 30 x4186 +41868 mi = 5.4 kg Ø tinal volume v= Vit Vo V = 5o45706 v=6.05 lt