14. How much heat is released when 40.0 g of steam at 250.0°C cools and condenses to water at 30.0 °C? (Sp. heat of H₂O(l) = 4.18 J/g °C, Sp. heat of H₂O(g) = 2.03 J/g °C, heat of vap. of H₂O(l) = 2.260 kJ/g) a) 32.9 kJ b) 122 kJ c) 114 kJ d) 24.0 kJ e) 23.0 J
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.
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