We want to convert 24 g of solid water at -11 °C to vapor at 108 °C. The energy need for this process is supplied by combustion of CH4/C2H6 gas mixture which is composed of 45 % CH4(g) by mass. What is the volume (as liters) of required amount of the mixture at 26 °C and under 748 mmHg pressure? For water c(solid) = 2.11 J g1 K¯, c(liquid) = 4.18 Jg1K", c(gas) = 2.00 J g1 K", AH°(fusion) %3D = 6.00 kJ mol", AH°(vapor.) = 40.7 kJ mol"!. %3D For CH, AH°(combustion) = -891 kJ mol", for C2H, AH°(combustion) = -1560 kJ mol™1

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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.