Which of the following statements are correct?
(A) At OK, hydrogen gas contains 100% parahydrogen,
(B) At high temperature, hydrogen contains about 75%
orthohydrogen
(C) Parahydrogen has lower energy than orthohydrogen.
(D) At high temperature, hydrogen contains about 75%
parahydrogen.
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Answer:
(B) at high temperature, hydrogen contains about 75 %
orthohydrogen
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