Concept explainers
Agriculture Water is sprayed on oranges during afrosty night. If an average of 11.8 g of water freezes oneach orange, how much heat is released?

Interpretation:
Heat released is to be calculated.
Concept introduction:
Molar mass: It is the sum of the total mass in grams of all the atoms that make a mole of a particular molecule.
Answer to Problem 84A
Heat released during the process is
Explanation of Solution
Molar mass of
Since,
Given information, 11.8g of
Take the molar heat of solidification of water as a conversion factor to convert moles of
Since,
Then,
Heat release can be calculated by the molar mass and Hess’s Law.
Chapter 15 Solutions
Chemistry: Matter and Change
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