Abstract
The vapour-pressure curve of liquid helium below 1.6° K has been determined using the susceptibility of various paramagnetic salts as the thermometer. It is found that the results agree with the theoretical curve recently calculated by Bleaney and Simon to within the experimental error of 0.004° down to 1° K, and differ from the ‘scale 1937’ of Schmidt and Keesom, e.g. by 0.03° at 1° K.
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12 articles.
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