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blac D www.google.com k Announcements meta x Assignments E Mastering Physics: ementary Google Chrome Secure https:// session.masteringphysics.com /myct/itemView? assignment ProblemID 374171663 Help I Close PHYS1052 General Physics II Problem 16.43 Mastering Phys previous l 7 of 12 l next ACTIONS O My Courses Problem 16.43 nt View Course Home Part A nt Mew The ceramic coffee cup he figure with m If 220 g of 80.3 coffee and 12.2 g of 5.00 oC cream are added to the cup, what is the equilibrium Syllabus 118 g and c 1090 J/(kg.K), is initially at room temperature of the system? Assume that no heat is exchanged with the surroundings, and that the specific BrintMew temperature 24.0 °C. heat of coffee and cream are the same as the specific heat of water. Assignments nt View Scores Course Tools Figure 1 1 eText Study Area My Answers Give Up Submit User Settings Continue 51 PM Ask me anything 9/2017Explanation / Answer
(16.43)
Heat energy is c*m*T
c = spcific heat capacity of
water = 4,18 J/g*°K
Heat taken up = heat given off:
1,09 *118 (T2 - 24) + 4,18*12,2*(T2- 5) = 4,18*220 *(80,3 - T2)
1,09*118T2 - 24*1,09*118 + 4,18*12,2*T2 - 5*4,18*12,2=
4,18*220*80,3 - 4,18*220 *T2
T2*1099.21 = 77185.74
T2 = 70.21°
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