Chemical Education Today
Corrections J. Chem. Educ. 2007, 84, 462–464 In the article “Cp/CV Ratios Measured by the Sound Velocity Method Using Calculator-Based Laboratory Technology” ( J. Chem. Educ. 2007, 84, 462–464), the last line of the second paragraph reads: For a linear, tri-atomic molecule, such as carbon dioxide, there are six degrees of freedom (three translational and three rotational) and, therefore, γ = 1 + (2兾6) = 1.33.
Instead, it should read: For a linear, tri-atomic molecule, such as carbon dioxide, there are five degrees of freedom (three translational and two rotational) and, therefore, γ = 1 + (2兾5) = 1.40.
Readers may find the emended PDF file at JCE Online: http://www.jce.divched.org/Journal/Issues/2007/Mar/ jceSubscriber/p462.pdf. Mario Branca Dipartimento di Chimica Università di Sassari Via Vienna 2, 07100, Sassari, Italy Isabella Soletta Istituto di Istruzione Superiore “G. Manno”, Via Carlo Alberto 92, 07041 Alghero (Sassari), Italy
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Journal of Chemical Education
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Vol. 84 No. 6 June 2007
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www.JCE.DivCHED.org
