Foundations of Materials Science and Engineering
6th Edition
ISBN: 9781259696558
Author: SMITH
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 5.7, Problem 1KCP
To determine
What is a thermally activated process and what is the activation energy for such a process.
Expert Solution & Answer
Explanation of Solution
Thermally activated process refer to the process that keep on processing not due to average effects, but since the section of particles available in the tail of the dispersal increases with temperature. The process needed a specified quantity of thermal energy, to overcome the barrier of activation energy, and enter into the reactive state.
The rate of activation energy required for such kind of processes increases exponentially with temperature. An increase in temperature will give the energy required for the reaction to take place.
An Arrhenius plot is used to derive a value or rate of the activation energy for a thermally activated process by taking data of rate and finding the slope of the plot.
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Solve for the reaction of all the forces
Don't use artificial intelligence or screen shot it, only expert should solve
No chatgpt pls
A six cylinder petrol engine has a compression ratio of 5:1. The clearance volume of each cylinder is 110CC. It operates on the four-stroke constant volume cycle and the indicated efficiency ratio referred to air standard efficiency is 0.56. At the speed of 2400 rpm. 44000KJ/kg. Determine the consumes 10kg of fuel per hour. The calorific value of fuel average indicated mean effective pressure.
Chapter 5 Solutions
Foundations of Materials Science and Engineering
Ch. 5.7 - Prob. 1KCPCh. 5.7 - Write an equation for the number of vacancies...Ch. 5.7 - Prob. 3KCPCh. 5.7 - Prob. 4KCPCh. 5.7 - Describe the substitutional and interstitial...Ch. 5.7 - Prob. 6KCPCh. 5.7 - What factors affect the diffusion rate in solid...Ch. 5.7 - Write the equation for Ficks second law of...Ch. 5.7 - Prob. 9KCPCh. 5.7 - Prob. 10KCP
Ch. 5.7 - (a) Calculate the equilibrium concentration of...Ch. 5.7 - Prob. 12AAPCh. 5.7 - Determine the diffusion flux of zinc atoms in a...Ch. 5.7 - The diffusion flux of copper solute atoms in...Ch. 5.7 - Prob. 15AAPCh. 5.7 - Prob. 16AAPCh. 5.7 - Prob. 17AAPCh. 5.7 - A gear made of 1020 steel (0.20 wt% C) is to be...Ch. 5.7 - Prob. 19AAPCh. 5.7 - The surface of a steel gear made of 1020 steel...Ch. 5.7 - Prob. 21AAPCh. 5.7 - If boron is diffused into a thick slice of silicon...Ch. 5.7 - Prob. 23AAPCh. 5.7 - Prob. 24AAPCh. 5.7 - Prob. 25AAPCh. 5.7 - Prob. 26AAPCh. 5.7 - Prob. 27AAPCh. 5.7 - Prob. 28AAPCh. 5.7 - Prob. 29AAPCh. 5.7 - Prob. 30AAPCh. 5.7 - The diffusivity of copper atoms in the aluminum...Ch. 5.7 - Prob. 32AAPCh. 5.7 - Prob. 33SEPCh. 5.7 - Prob. 34SEPCh. 5.7 - Prob. 37SEPCh. 5.7 - Prob. 38SEPCh. 5.7 - The activation energy of nickel atoms in FCC iron...Ch. 5.7 - Prob. 40SEPCh. 5.7 - The self-diffusion of iron atoms in BCC iron is...Ch. 5.7 - Would you expect the diffusion rate of copper...Ch. 5.7 - Would you expect the diffusion rate of copper...Ch. 5.7 - Prob. 44SEPCh. 5.7 - Prob. 45SEPCh. 5.7 - Prob. 46SEPCh. 5.7 - Prob. 47SEPCh. 5.7 - Prob. 48SEPCh. 5.7 - Prob. 49SEPCh. 5.7 - Prob. 50SEP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- The members of a truss are connected to the gusset plate as shown in (Figure 1). The forces are concurrent at point O. Take = 90° and T₁ = 7.5 kN. Part A Determine the magnitude of F for equilibrium. Express your answer to three significant figures and include the appropriate units. F= 7.03 Submit ? kN Previous Answers Request Answer × Incorrect; Try Again; 21 attempts remaining ▾ Part B Determine the magnitude of T2 for equilibrium. Express your answer to three significant figures and include the appropriate units. Figure T₂ = 7.03 C T2 |? KN Submit Previous Answers Request Answer × Incorrect; Try Again; 23 attempts remaining Provide Feedbackarrow_forwardConsider the following acid-base reaction: Fe3+(aq) +3H2O -Fe(OH)3 (s) + 3H* ← A. Using thermodynamics, calculate the equilibrium constant K at 25°C (The AG° of formation of Fe(OH)3(s) is -699 kJ/mol). B. Using the value of K you calculated in part a, if a solution contains 10-4 M Fe3+ and has a pH of 7.5, will Fe(OH)3(s) precipitate? Show all calculations necessary to justify your answer. Note that the reaction as written is for precipitation, not dissolution like Ksp-arrow_forwardA vertical force of F = 3.4 kN is applied to the hook at A as shown in. Set d = 1 m. Part A 3 m 3m 0.75 m 1.5 m. Determine the tension in cable AB for equilibrium. Express your answer to three significant figures and include the appropriate units. FAB= Value Submit Request Answer Part B Units ? Determine the tension in cable AC for equilibrium. Express your answer to three significant figures and include the appropriate units. FAC = Value Submit Request Answer Part C ? Units Determine the tension in cable AD for equilibrium. Express your answer to three significant figures and include the appropriate units.arrow_forward
- Consider the heat engine operating at steady state between the two thermal reservoirs shown at the right while producing a net power output of 700 kW. If 1000 kW of heat (Q̇H) is transferred to the heat engine from a thermal reservoir at a temperature of TH = 900 K, and heat is rejected to a thermal reservoir at a temperature of TL = 300 K, is this heat engine possible? Can you answer this question for me and show all of the workarrow_forward1.12 A disk of constant radius r is attached to a telescoping rod that is extending at a constant rate as shown in Fig. P1.12. Both the disk and the rod are rotating at a constant rate. Find the inertial velocity and acceleration of point P at the rim of the disk. ท2 L 0 SS P α e 0 O' êL Fig. P1.12 Rotating disk attached to telescoping rod. 60 LLarrow_forwardTwo different options A and B with brake pads for disc brakes are connected to the rope drum. The diameter of the rope drum is 150 mm. What distance must the pads B be at from the center of rotation to cover the same distance as A?A B- Width 50 mm - Width 60 mm- Evidence center 120mm - Construction power 900 N from rotation center.- Maintains a weight of 200 kgwhen the installation force is 1.4kN (μ is missing from the data)M=μF(Ry-Ri)Right answer R=187 mmarrow_forward
- Assume the xy plane is level ground, and that the vertical pole shown in the diagram lies along the z-axis with its base at the origin. If the pole is 5 m tall, and a rope is used to pull on the top of the pole with a force of 400 N as shown, determine the magnitudes of the parallel and perpendicular components of the force vector with respect to the axis of the post i.e. with respect to the z-axis.arrow_forward4-1 Q4: Q5: (20 Marks) Find √48 using False Position Method with three iterations. Hint: the root lies between 3 and 4. (20 Marks)arrow_forwardDetermine the angle between vectors FA and FB that is less than 180 degrees. FA is the vector drawn from the origin to point A (-4, 4, 2) while FB is the vector drawn from the origin to point B (3, 1, -3).arrow_forward
- Find the resultant force vector from adding F1, F2 and F3, where … F1 = {-8i+10j-32k} N F2 is 40 N in magnitude with coordinate direction angles α, β, and γ, of 45, 120 and 60 degrees, respectively and F3 is 22 N in magnitude with transverse and azimuth angles of 65 and 40 degrees, respectively Express your final answer as a Cartesian vector as well as a magnitude with angles.arrow_forwardA 2-kW resistance heater wire with thermal conductivity of k=20 W/mK, a diameter of D=4mm, and a length of L=0.9m is used to boil water. If the outer surface temp of the resistance wire is Ts=110 degrees C, determine the temp at the center of the wire.arrow_forwardA flat-plate solar collector is used to heat water by having water flow through tubes attached at the back of the thin solar absorber plate. The absorber plate has emmisssivity and an absorptivity of 0.9. The top surface where x=0 temp of the absorber is T0=35 degrees C, and solar radiation is incident on the basorber at 500 W/m^2 with a surrounding temp of 0 degrees C. The convection heat transfer coefficient at the absorber surface is 5 W/m^2 K, while the ambient temp is 25 degrees C. Show that the variation of the temp in the basorber plate can be expressed as T(x)=-(q0/k)x+T0, and determine net heat flux, q, absorbed by solar collector.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Welding: Principles and Applications (MindTap Cou...Mechanical EngineeringISBN:9781305494695Author:Larry JeffusPublisher:Cengage Learning
Welding: Principles and Applications (MindTap Cou...
Mechanical Engineering
ISBN:9781305494695
Author:Larry Jeffus
Publisher:Cengage Learning