You place a plastic bottle containing 0.600 liters of water at 25.0°C in a freezer that uses CF₂Cl₂ as a refrigerant. The heat of vaporization of CF₂Cl₂ is 158 J/g. What mass (in grams) of CF₂Cl₂ must be vaporized in the refrigeration cycle to convert the bottle of water from 25.0°C to a bottle of ice at -10.0°C? The enthalpy of fusion of ice is 6.02 kJ/mol, and the heat capacities for H₂O(l) and H₂O(s) are 4.18 J/g･°C and 2.03 J/g･°C, respectively. The plastic bottle has a mass of 20.0 g and has a average heat capacity of 1.50 J/g･°C over this temperature range. (Assume the density of water is 1.00 g/mL
States of Matter
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.
You place a plastic bottle containing 0.600 liters of water at 25.0°C in a freezer that uses CF₂Cl₂ as a refrigerant. The heat of vaporization of CF₂Cl₂ is 158 J/g. What mass (in grams) of CF₂Cl₂ must be vaporized in the refrigeration cycle to convert the bottle of water from 25.0°C to a bottle of ice at -10.0°C?
The enthalpy of fusion of ice is 6.02 kJ/mol, and the heat capacities for H₂O(l) and H₂O(s) are 4.18 J/g･°C and 2.03 J/g･°C, respectively. The plastic bottle has a mass of 20.0 g and has a average heat capacity of 1.50 J/g･°C over this temperature range. (Assume the density of water is 1.00 g/mL).
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