Precipitation hardening?
Hello, I need help with the following problems for a school project. Unfortunately, I can't solve the diagrams and can't find any instructions or solutions online. Thank you in advance!
Sublimation printing of water?
The following question relates to the following task: Calculate the pressure required for lyophilization (freeze-drying of biological samples, i.e., sublimation of water) at T = -20 C. Note: Start by reducing the pressure from the triple point. I've only provided the phase diagram of water with the corresponding values, for example, for the triple point….
Clausius-Clapeyron derivation?
Hello, I have a question about the following: Use the triple point and boiling point at 1 atm to calculate the enthalpy of vaporization (Delta Hvap). Note: Express the derivative in terms of a difference. Compare to the literature value of 40.65 kJ/mol. Of course, there is also the Phase diagram of H2O… I understand…
Phase diagram materials engineering?
I have the phase diagram below as an exercise. In this task, I'm supposed to calculate the phase fractions of alpha and S. However, only the temperature is given. Do I have to assume that I have to calculate the proportions at 0% and 800*C? That would be a=0 and b=5 So for alpha b/a+b=5/5=1…
At what temperature does a solid mixture containing 90% lead begin to melt and at what temperature is the mixture completely liquid?
I need help with this problem, please. So, with 90% lead, I would have to go vertically upwards at 10% tin and see when I reach a two-phase region with liquid and solid. That would be the beginning of melting, right? But one of my answers states that melting begins at 183°C, but with a…
Does carbon also have an anomaly (phase diagram?
Hello, Does C also have an anomaly? Water is said to have an anomaly in that its melting curve is negative. As far as I can see from this diagram, that seems to be the case for C as well… source: http://ruby.chemie.unifreiburg.de/Vorlesung/Gif_bilder/nichtmetalle/c_pt_grafik_b.png
Do you know anything about chemistry?
Hello, I wanted to ask if anyone knows the answer to the following examples: Question 1: What happens to water when you heat it? What happens to the density, what happens to the volume. Question 2: Phase diagram: Carbon: How much at 100 kelvin.. How much pressure is needed to make it Diamond is (500…
Help with the phase diagram?
Hello, I don't really understand how to read a phase diagram. Accordingly, I'm having trouble solving the b and c. Thank you in advance!😊
Describe the phase diagram?
Hello, I'm having trouble with these tasks and I hope someone can give me a complete solution: Using the phase diagram, starting with the melting temperature of pure iron, qualitatively describe the dependence of the melting temperature on the carbon content. Explain the behavior that occurs. Using the phase diagram, determine in which modifications or…