the velocity of sound in oxygen is v the velocity of sound in the mixture of oxygen and nitrogen at 0 degree Celsius in the ratio 1:1 by volume is
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An idiom is a phrase or expression that typically presents a figurative, non-literal meaning attached to the phrase; but some phrases become figurative idioms while retaining the literal meaning of the phrase. Categorized as formulaic language, an idiom's figurative meaning is different from the literal meaning.
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