Name the phase transition in each of the following situationsand indicate whether it is exothermic or endothermic:(a) When ice is heated, it turns to water. (b) Wetclothes dry on a warm summer day. (c) Frost appears on awindow on a cold winter day. (d) Droplets of water appearon a cold glass of lemonade.
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.
Name the phase transition in each of the following situations
and indicate whether it is exothermic or endothermic:
(a) When ice is heated, it turns to water. (b) Wet
clothes dry on a warm summer day. (c) Frost appears on a
window on a cold winter day. (d) Droplets of water appear
on a cold glass of lemonade.
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