A sample of iron with a mass of 200g releases 9840 cal when it freezes at it’s freezing point. What is the molar heat of fusion

Question

3 years ago

9

for iron?

2 answers:

antoniya [11.8K] · Answer 1 · 2022-08-22T03:52:31+03:00

Answer:-

2747.7 Cal mol -1

Explanation:-

Molar heat of Fusion is defined as the amount of heat necessary to melt (or freeze) 1 mole of a substance at its melting point.

Atomic mass of Iron = 55.845 g mol-1

Mass of Iron = 200 g

Number of moles of Iron = 200 g / (55.845 g mol-)

= 3.581 moles

Heat released = 9840 Cal

Molar heat of Fusion = Heat released / Number of moles

= 9840 Cal / 3.581 moles

= 2747.7 Cal mol -1

____ [38] · Answer 2 · 2022-08-22T05:59:14+03:00

____ [38]3 years ago

5 0

Answer:

A. 2,747.7 cal/mol

Explanation:

I have several degrees