Two 20.0‑g ice cubes at −20.0 ∘C are placed into285 g of water at 25.0 ∘C. Assuming no heat is transferred to or from the surroundings, determine the final temperature of the water after all the ice melts. Molar heat capacity of H2O(s) 37.7 J/mol·∘C Molar heat capacity of H2O(l) 75.3 J/mol·∘C Molar enthalpy of fusion of H2O 6.01 kJ/mol
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.
Two 20.0‑g ice cubes at −20.0 ∘C are placed into285 g of water at 25.0 ∘C. Assuming no heat is transferred to or from the surroundings, determine the final temperature of the water after all the ice melts.
| Molar heat capacity of H2O(s) | 37.7 J/mol·∘C |
|---|---|
| Molar heat capacity of H2O(l) | 75.3 J/mol·∘C |
| Molar enthalpy of fusion of H2O | 6.01 kJ/mol |
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