Answer
Please see the work below.
Work Step by Step
We know that
$C^{\circ}=K-273$
a. $C^{\circ}=77K-273=-196C^{\circ}$
b. $C^{\circ}=4.2K-273=-169C^{\circ}$
c. $C^{\circ}=601K-273=328C^{\circ}$
Chemistry 12th Edition
by Chang, Raymond; Goldsby, Kenneth
Published by
McGraw-Hill Education
ISBN 10:
0078021510
ISBN 13:
978-0-07802-151-0
Chapter 1 - Chemistry: The Study of Change - Questions & Problems - Page 30: 1.26
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