Calculate the Amount of Heat Needed to Melt 2 $\Delta$ H_fus = 13

question 101

Multiple Choice

Calculate the amount of heat needed to melt 2.00 kg of iron at its melting point (1,809 K) , given that $\Delta$ H_fus = 13.80 kJ/mol.

• A) 27,600 J
• B) 27.6 kJ
• C) 494 kJ
• D) 25,000 kJ
• E) 27,600 kJ

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Definitions:

Arthrocentesis

A medical procedure involving the puncturing of a joint capsule using a needle to collect synovial fluid for diagnostic or therapeutic purposes.

Ankylosis

The fusion of bones across a joint, leading to loss of joint mobility and stiffness, often resulting from chronic inflammation or injury.

Condyle

A rounded projection on a bone, typically at the joint, where it connects with another bone.

Trochanter

A large, bony prominence found on the femur, serving as a major attachment point for muscles.