Find the total change in entropy if 2 kg of ice at 0.0° C is mixed with 25 kg of water at 20° C. Take the specific heat capacity of water to be 4186 J/(kg. K) and the latent heat of fusion of ice to be 3.35 x 10°J/kg. Select one. O A. 51 J/K O B.38 J/K OE 84 J/K D. 240 J/K E 148 J/K F. +51 J/K O G 18J/K H +31J/K

Find the total change in entropy if 2 kg of ice at 0.0° C is mixed with 25 kg of water at 20° C. Take the specific heat capacity of water to be 4186 J/(kg. K) and the latent heat of fusion of ice to be 3.35 x 10°J/kg. Select one. O A. 51 J/K O B.38 J/K OE 84 J/K D. 240 J/K E 148 J/K F. +51 J/K O G 18J/K H +31J/K

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

10 During an isothermal process at 88°F, the pressure on 8 lb of air drops from 80 psia to 5 psig. Determine: a. The non-flow and steady flow work. Ans. 421.2 Btu, 421.2 Btu b. The heat and change in internal energy and change in enthalpy. Ans. 421.2 Btu, 0, 0 C. The change in entropy. Ans. 0.7686 Btu/°R
What increase in entropy is produced by mixking 20.0kg of 90.0C water with 20.0kg of 10.0C water? Q=3.35x10^6J
#2. Suppose 2.35 moles of an ideal gas expands to twice its volume isothermally at 298 K. A) How much work is done by the gas? B) Show the work done on a pressure-volume (P-V) graph C) What is the change in entropy of the gas?
16
One of the consequences of the 2nd Law of Thermodynamics is: A. You can get the same amount of energy out of a process as you put in B. Two bodies are in thermal equilibrium when they have the same temperature C. You can get more energy out of a process than you put in D. The starting and finishing temperature of a cycle must be the same E. You can not get as much energy out of a process as you put in
There are 2 kg of gas with R = 400 J/kg- oK and k = 1.25 that undergo a nonflow constant volume process from p1 = 600 kPa and T1 = 87 oC to p2 = 1600 kPa. During the process, the gas is internally stirred and there are added 220 kJ of heat. Find, a.T2 in oC b. Work input c. change of Entropy, S
If the difference between the temperature limits of a Carnot cycle is 3000C and the thermal efficiency is 65.43%, determine the higher temperature limit of the cycle?a. 458.50510C b. 458.50520C c. 458.50530C d. 458.50540C
*80. D The sun is a sphere with a radius of 6.96 X 10° m and an av- erage surface temperature of 5800 K. Determine the amount by which the sun's thermal radiation increases the entropy of the entire universe each second. Assume that the sun is a perfect blackbody, and that the average temperature of the rest of the universe is 2.73 K. Do not con- sider the thermal radiation absorbed by the sun from the rest of the universe.
12.
H4
On a hot summer day, 2.00 x 10° J of heat transfer into a parked car takes place, increasing its temperature from 35.5°C to 44.4°C. What is the increase in entropy (in J/K) of the car due to this heat transfer alone? J/K Additional Materials CS Scanned with CamScanner O Reading
5:59 PM Thu Apr 29 L 40% O Submit Problem 2 Unanswered An engine runs with an intake temperature of TH = 450K and exhaust temperature of Tc = 300K. The engine's manufacturer claims the engine has an efficiency of 30%. Which of the following statements is correct?- The claimed efficiency is bogus because it violates the 2nd law of A thermodynamics. The claimed efficiency does not violate the 2nd law of thermodynamics. Submit