A cube of some frozen substance whose mass is 0.062 kg is taken from a freezer, where its temperature was -11.2 °C, and dropped into a beaker containing the same substance in liquid phase at 2.49 °C. If no heat is gained or lost from outside, how much of the substance (in grams) freezes onto che cube? The latent heat of fusion (AHfus) of this chemical is 34.10 x 104 J/kg and the specific heat capacity is 2,469 J/kg °C. HINT: Find the energy needed to bring the temp of the cube to the temp of the liquid. Then use AHfus = q / m) to find the
A cube of some frozen substance whose mass is 0.062 kg is taken from a freezer, where its temperature was -11.2 °C, and dropped into a beaker containing the same substance in liquid phase at 2.49 °C. If no heat is gained or lost from outside, how much of the substance (in grams) freezes onto che cube? The latent heat of fusion (AHfus) of this chemical is 34.10 x 104 J/kg and the specific heat capacity is 2,469 J/kg °C. HINT: Find the energy needed to bring the temp of the cube to the temp of the liquid. Then use AHfus = q / m) to find the
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
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Transcribed Image Text:A cube of some frozen substance whose mass is 0.062 kg is taken from a freezer, where its
temperature was -11.2 °C, and dropped into a beaker containing the same substance in liquid phase at
2.49 °C. If no heat is gained or lost from outside, how much of the substance (in grams) freezes onto
the cube? The latent heat of fusion (AHfus) of this chemical is 34.10 x 104 J/kg and the specific heat
capacity is 2,469 J/kg °C.
HINT: Find the energy needed to bring the temp of the cube to the temp of the liquid. Then use
(AHfus = q / m) to find the mass.
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