Question

Bicycle We has a pressure of 7.00-105 N/m2 af a tem HW 10 - Thermal Physics Begin Date: 7/22/2020 12:01:00 AM - Due Date: 7/31/2020 11:59:00 PM End Date: 7/31/2020 11:59:00 PM (9%) Problem 10: Several ice cubes (q;= 0.9167 g/cm) of total volume V; = 260 cm and temperature 273.15 K (0.000 °C) are put into a thermos containing V,= 570 em of tea at a temperature of 313.15 K, completely filling the thermos. The lid is then put on the thermos to close it. Assume that the density and the specific heat of the tea is the same as it is for fresh water (0 = 1.00 g/cm'c =4186J/kgK). tus ar atus tial 33% Part (a) Calculate the amount of heat energy in I needed to melt the ice cubes (Ly= 334 kW/kg). artial Grade Summary Deductions Potential 100 tano sin cos 1 (7 8 9 HOME cotano asin) acos E 4 5 6 atano acotano) sinh 1 2 3 cosho tanho cotanh() + 0 ODegrees Radians VOACHCHAR Submissions Attempts remaining: per attempo) detailed view Submit Hint Poolback I give up! Hits: o deduction per hint. Hints remaining 2 Feedback: 0. deduction per feedback 33% Part (b) Calculate the equilibrium temperature Tg in K of the final mixture of tea and water. & 33% Part (e) Calculate the magnitude of the total heat transferred Qy in from the tea to the ice cubes. ΤΑ

Answer 1

0:2 38 X 3 3 4 + 0.238*2.04 xq 0.57 x 4.186x(40°-1) 15.95 2.87 27. 7 = 5.550. 1 - T= 5.55+273.15 278.70k - Equelebrium temperatur 3 313:15 K. c. Intial temperature of tea Final temperaluse of tea 278. ok. tea . lost by So beat = mcat. 0.57 x 4186 x ( 313:15 - 278.70) 1) 82198 39 g T