Recent content by Spring lady

I posted all relevant values and constants. The calculation is very simple, I just typed all these constants in a calculator. I checked everything and I repeated this many times, but I got the same value. I thought that maybe I used the wrong formula or the wrong values for the speed of sound...

Homework Statement Calculate the Debye temperature for gold Homework Equations $$Θ_D = \hbar \frac{v_s}{k_b} \sqrt[3]{6π^2 \frac{N}{V}}$$ Speed of sound in gold: $$v_s=3240 m/s$$ The Attempt at a Solution I used the equation for ΘD and for the concentration I used the value for atom density...

I have the same problem. Can someone please explain how to read these curves? If these curves are shown in the first Brillouin zone, does this mean that the values of k in this graph go from 0 to π/a both in X and L direction?

Hey. I have a problem with this titration. Specifically, I need to determine the concentration of hydrogen peroxide during his catalyzed decomposition. But I do not understand how can I determine the concentration of hydrogen peroxide after 15 minutes of the beginning of reaction when hydrogen...