first pressure derivative of bulk modulus at zero pressure


by sirwan
Tags: bulk, derivative, modulus, pressure
sirwan
sirwan is offline
#1
Nov29-13, 07:51 AM
P: 9
what is the physical meaning of first pressure derivative of bulk modulus at zero pressure. if it is ∂k/∂p, i say how it change with pressure, if it is at zero pressure?
Phys.Org News Partner Physics news on Phys.org
Chameleon crystals could enable active camouflage (w/ video)
Atomic switcheroo explains origins of thin-film solar cell mystery
X-ray laser experiment explores how specially shocked material gets stronger
DrDu
DrDu is offline
#2
Nov29-13, 09:25 AM
Sci Advisor
P: 3,378
It means $\partial k/\partial p|_{p=0}=\im_{\Delta p \to 0}(k(0+\Delta p)-k(0))/\Delta p$
I.e. it is the change of bulk modulus when you increase the pressure slightly starting at p=0.
This is analogous to asking about the accelleration of a car dv/dt at zero speed.


Register to reply

Related Discussions
Young's Modulus, Bulk Modulus, and Shear General Physics 3
Pressure in Tube, Bulk Modulus Introductory Physics Homework 0
Young's Modulus of Pressure Sensor Introductory Physics Homework 1
young's modulus and bulk modulus of cooked pasta Classical Physics 4
Hydrolic Pressure and Bulk Modulus Introductory Physics Homework 3