Physics, 12.03.2020 05:51 zacharyminnick123
A diffusion couple composed of two silver– gold alloys is formed; these alloys have compositions of 98 wt% Ag–2 wt% Au and 95 wt% Ag– 5 wt% Au. Determine the time this diffusion couple must be heated at 750°C (1023 K) in order for the composition to be 2.5 wt% Au at the 50 μm position into the 2 wt% Au side of the diffusion couple. Preexponential and activation energy values for Au diffusion in Ag are 8.5 × 10−5 m2/s and 202,100 J/mol, respectively.
Answers: 1
Physics, 21.06.2019 21:30
The step-down transformer gives a current of 10a at 24v if the primary voltage is 240v calculate the 1_primary current 2_the power input 3_the power output
Answers: 2
Physics, 22.06.2019 06:00
Explain earth's motion, using the terms "precession" and "rotation" in your answer.
Answers: 1
Physics, 22.06.2019 13:10
Which additional product balances the reaction h2so4 + 2naoh → na2so4 + 2h2o 2oh h2o2 h3o
Answers: 1
Physics, 22.06.2019 18:20
Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?
Answers: 1
A diffusion couple composed of two silver– gold alloys is formed; these alloys have compositions of...
History, 07.05.2021 18:40
Mathematics, 07.05.2021 18:40
Social Studies, 07.05.2021 18:40
Mathematics, 07.05.2021 18:40
Chemistry, 07.05.2021 18:40
Mathematics, 07.05.2021 18:40