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Solved: The human body obtains 835 kJ of energy from a chocolate chip cookie. If this
Chapter 12, Problem 55P(choose chapter or problem)
The human body obtains 835 kJ of energy from a chocolate chip cookie. If this energy were used to vaporize water at \(100^{\circ} \mathrm{C}\), how many grams of water could be vaporized? (Assume that the density of water is 1.0 g/mL.)
Equation Transcription:
Text Transcription:
100 degrees C
Questions & Answers
QUESTION:
The human body obtains 835 kJ of energy from a chocolate chip cookie. If this energy were used to vaporize water at \(100^{\circ} \mathrm{C}\), how many grams of water could be vaporized? (Assume that the density of water is 1.0 g/mL.)
Equation Transcription:
Text Transcription:
100 degrees C
ANSWER:
Solution 55P
Step 1:
Given and known values are :
Heat available to the body =835 kJ.
Heat of vaporisation of water at 100 oC.
It is clearly given that all the 835 kJ should be used to vaporize water at 100oC.
Molecular weight of water =18g/mol.