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11 Dec 2019

PLEASE EXPLAIN HOW!!!!!

The following information is for the element cobalt at 1 atm pressure

Boiling point= 3097 degrees C

Melting point= 1495 degrees C

Specific heat solid= 0.4180 J/g degrees C

Specific heat liquid= 0.6860 J/g degrees C

Delta H_vap (3097 degrees C)= 6603 J/g

Delta H_fus (1495 degrees C)= 262.7 J/g

A 1.00g sample of solid cobalt is initially at 1395 degrees C. If the sample is heated at a constant pressure (P=1atm), how much heat must be added to the sample to raise its temperature to 1595 degrees C?

A. 373 J

B. 263 J

C. 110 J

D. 6713 J

E. 305 J

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Nelly Stracke
Nelly StrackeLv2
13 Dec 2019

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