Question

In: Physics

Gadolinium is a ferromagnetic metal below its Curie temperature of 292 K. When fully magnetized at...

Gadolinium is a ferromagnetic metal below its Curie temperature of 292 K. When fully magnetized at 260 K it has a saturation magnetization of 1.7 106 A/m . The density and atomic weight of Gd are 7.90 g/cm3 and 157.25 g/mol, respectively. Calculate the effective number of Bohr magnetons each Gd atom contributes to overall magnetization for a fully magnetized sample.

Solutions

Expert Solution


Related Solutions

What is the temperature, above which a ferromagnetic substance shows no ferromagnetism called? a) Curie temperature b) Néel temperature c) Critical temperature d) There exists no such temperature
What is the temperature, above which a ferromagnetic substance shows no ferromagnetism called? a) Curie temperature b) Néel temperature c) Critical temperature d) There exists no such temperature
Tin (Sn) metal is a superconductor with a transition temperature of 3.7 K. Its properties are...
Tin (Sn) metal is a superconductor with a transition temperature of 3.7 K. Its properties are well described by the BCS theory. a. What is the zero temperature energy gap (in eV, not J) of Sn? b. The energy gap is the minimum energy required to break apart the Cooper pairs in a superconductor. If the breaking is done by photons what is the longest wavelength photons that can break the pairs? What is the frequency of those photons? 1...
why does the resistance of a metal vary with its temperature
why does the resistance of a metal vary with its temperature
When adding heat to a substance at its phase transition temperature, why does the temperature of...
When adding heat to a substance at its phase transition temperature, why does the temperature of the substance not change? What is the energy used for?
An iron sphere has a radius of 0.7 meters and its surface temperature is 400 K....
An iron sphere has a radius of 0.7 meters and its surface temperature is 400 K. It is surrounded by air whose temperature is 300 K. The emissivity of iron and air is 0.985. to. Find the heat flux that is emitted by radiation from the iron sphere. b. Find the net flow of heat from the iron sphere.
2. The heat capacity of one mole of aluminum at low temperature (below 50 K) follows...
2. The heat capacity of one mole of aluminum at low temperature (below 50 K) follows the form CV = aT+bT3 where a = 0.00135 J/K2 and b = 2.48×10-5 J/K4. (The first term comes from the free electrons and the second term is due to lattice vibrations.) Use this expression to derive a formula for the molar entropy of aluminum as a function of temperature, assuming that the entropy at 0 K is zero. Finally, determine the ratio of...
When the air temperature is below 0 ?C, the water at the surface of a lake...
When the air temperature is below 0 ?C, the water at the surface of a lake freezes to form a sheet of ice. If the upper surface of an ice sheet 24.64cm thick is at -10.58?C and the bottom surface is at 0 ?C, calculate the time it will take to add 2.41mm to the thickness of this sheet.
When looking at the glass transition temperature, what happens when above and below it? How does...
When looking at the glass transition temperature, what happens when above and below it? How does this change between thermoplastic vs. thermosetting? Amorphous vs. Crystalline? Linear vs. nonlinear? When does glass formation happen vs. crystallization? When looking at the melting temperature, what happens when above and below it? How does this change between thermoplastic vs. thermosetting? Amorphous vs. Crystalline? Linear vs. nonlinear? When does solidification happen vs. crystallization?
The steady-state diffusion flux through a metal plate is 5.4 x 10-10 kg/m2 s at a temperature of 827 °C (1100 K) and when the concentration gradient is -350 kg/m4
The steady-state diffusion flux through a metal plate is 5.4 x 10-10 kg/m2 s at a temperature of 827 °C (1100 K) and when the concentration gradient is -350 kg/m4 . Calculate the diffusion flux at 1027 °C (1300 K) for the same concentration gradient and assuming an activation energy for diffusion of 150,000 J/mol.
Crossett Trucking Company claims that the mean weight of its delivery trucks when they are fully...
Crossett Trucking Company claims that the mean weight of its delivery trucks when they are fully loaded is 5,650 pounds and the standard deviation is 240 pounds. Assume that the population follows the normal distribution. Forty-five trucks are randomly selected and weighed. Within what limits will 90% of the sample means occur? (Round your z-value to 2 decimal places and final answers to 1 decimal place.) Sample means _______ to _______
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT