Green Xenon Posted December 29, 2010 Share Posted December 29, 2010 Hi: What is the mechanism by which ultrasound generates heat? Thanks, Green Xenon Link to comment Share on other sites More sharing options...
insane_alien Posted December 29, 2010 Share Posted December 29, 2010 it causes vibrations in the material, friction and damping convert these waves into heat. Link to comment Share on other sites More sharing options...
Green Xenon Posted December 29, 2010 Author Share Posted December 29, 2010 it causes vibrations in the material, friction and damping convert these waves into heat. What frequency of ultrasound will most efficiently heat up nitrogen [N2] gas molecules? Link to comment Share on other sites More sharing options...
insane_alien Posted December 29, 2010 Share Posted December 29, 2010 whichever frequency is the least transmissible. Link to comment Share on other sites More sharing options...
Green Xenon Posted December 29, 2010 Author Share Posted December 29, 2010 whichever frequency is the least transmissible. Is this because nitrogen makes up most of Earth's atmosphere? Link to comment Share on other sites More sharing options...
insane_alien Posted December 29, 2010 Share Posted December 29, 2010 no Link to comment Share on other sites More sharing options...
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