During a process, the temperature of thesystem rises from 100°C to 200°C. Heattransfer per degres rise in temperature at eachtemperature reached during the process isgiven by 80/ST = 1.005 kJ/K. The workdonoon the system per degree rise in temperaturoat each temperature reached is given bySWIST(44 - 0.12T) kJ/K. Calculate thechange in intermel energy of the system duringthe process.

Given that, T1=100°C=100+273=373 KT2=200°C=200+273=473 KδQδT=1.005 kJ/K…

During a process, the temperature of the system rises from 100°C to 200°C. Hent transfer per degree rise in temperature at each temperature reached during the process is given by 8Q/ST = on the system per degree rise in temperature at each temperature reached is given by SWIST 1.005 kJ/K. The workdonO (4 - 0.12T) kJ/K. Calculate the change in intermal energy of ttho system during the process.

During a process, the temperature of the system rises from 100°C to 200°C. Hent transfer per degree rise in temperature at each temperature reached during the process is given by 8Q/ST = on the system per degree rise in temperature at each temperature reached is given by SWIST 1.005 kJ/K. The workdonO (4 - 0.12T) kJ/K. Calculate the change in intermal energy of ttho system during the process.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter4: Numerical Analysis Of Heat Conduction

Section: Chapter Questions

Problem 4.36P

See similar textbooks

Similar questions

PLEASE SHOW THE STEP-BY-STEP SOLUTION
The left side of this equation tells how much energy Q the cylinder gives to the water while it cools. The right side of this equation tells how much energy Q the water and aluminum cup absorb from the cylinder to warm up. Because it is the same energy, they are equal. What is known in this equation? Mcyl 411.7 g, malum 46.5 g, malum+water = 175 g Can you find: mwater =? g Twater = Talum = 20°C (water and cup of room temperature) 90°C, T; = 35°C (hot cylinder and cool "cylinder+cup+water" temperatures) Tcyl kCal Calum = 0.22, Cwater 1 (specific heat of water and aluminum, measured in units kg-°C What are we looking for is Ccul - How we find it? Plug all the numbers into the equation (1), Ccul will be one unknown which you can calculate from the equation. Important, convert all the masses from grams to kilograms! After you find Ccyl, compare it to known value for the copper 0.093(our cylinder is made out of copper). |Ceyl -0.093| % : · 100% 0.093
Q2- Determine: A small solid at temperature of 85 °C is to be cooled in a cooling chamber maintained at 10 °C. 1- The time required for the temperature of the solid to reach 13 °C if the proportionality constant is a = 0.002/m² with a contacting surface area A = 0.2 m². 2- The temperature of the ball after 30 s. 3- The final temperature of the ball. Bulk environmental temperature = T₁ AZ Surface area, A- Solid T(t) Initial solid temperature, To
A manufacturer in the United States wants to sell a refrigeration system to a customer in Germany. The standard measure of refrigeration capacity used in the United States is the ton (T); a 1 T capacity means that the unit is capable of making about 1 T of ice per day or has a heat removal rate of 12,00 Btu/h. The capacity of the American system is to be guaranteed at 3 T. What is this guarantee in SI units?
Problems 1. An iron casting of mass 10 kg has an original temperature of 200°C. If the casting loses heat to the value of 715.5 kJ, what is the final temperature? Take C=477J/kgK. Ans:323K
A liquid reactant solution is pumped through a pre-heater before entering a reaction vessel. The solution enters the pre-heater at 25 °C and must enter the reactor at 45 °C. The flow of the reactant solution is 1500 mL per minute. The density of the reactant solution is 0.91 g-cm3 and the heat capacity is 1.75 Jg1.K1. ASsume there is no heat loss in the pre-heater or between the pre-heater and the reactor. a. Draw a schematic of the pre-heater, detailing all mass and energy flows. b. Clearly define a system boundary. c. Write the general energy balance, and a simplified energy balance stating all assumptions that apply to this problem. d. What is the minimum power rating required for the pre-heater?
Determine the thermal efficiency
Q1: If a calorimeter is not assumed to be adiabatic, how would one calculate the heat transfer? Guide Questions: What are the parameters to be considered and the equations to be used? What law of thermodynamics does this transfer of heat to the surroundings touch? Is an adiabatic system automatically considered as a closed system? Please help me understand by also attaching a reference/book/journal article. This would help me in my essay. Thank you.
A pan with initial temperature -25C is put in a room with temperature 25C. After half an hour, the skillet's temperature changes to -15C. 1. Find an expression for the pan's temperature as function of time. 2. What is the pan's temperature after another half hour? 3. When will the pan have warmed to 10C? to 25C?
An electric heater producing 260 W of heat is used to warm up a room containing 7 m3 of air. If we assume the room is perfectly sealed and there is no heat loss through the room boundaries, such that all of the heater output goes into increasing the air temperature, how long will it take to heat up the air in the room from 5.0 °C to 24.1 °C? Give your answer to the nearest minute and assume that the specific volume (v = 0.85 m3/kg) and specific heat capacity at constant volume (cv = 1.005 kJ/(kg K)) remain constant throughout the heating process.
Given the folowing mechanical system Using the energy method we are required to mathematically model the system, this achieved through the following steps. Solution 1- How many mechanical elements are in the shown in the image? 2- Fill in the given table for the kinetic and potential energies for the given example? Element Number Kinetic Energy Potential Energy U 4. 6. 3- Write the found kinetic and potential energies stated in the previous table in the following form T+U =C 4- Apply the time derivative to the found equation and find the differential equation Ə(T + U) - 0 at 5. Convert the found differential equation so that it has a unified single parameter using x= re 6- Apply the Laplace transform to the found differential equation, find the Laplace function f(s) knowing that x(0) = 0 & x(0) = 0 7- Apply the inverse Laplace transform to the f(s) equation, this is to find the final solution x(t)
that provetthe equation from the equation de -ote -o is the Solution to the following equation ex)= Ge"+ Cq e by using re ference Ĉ Heat Trans fer A Purtical Approach x² ax -ax second EDition for YUNUS A, CENGL