A student collects data to determine the enthalpy of vaporization of water. Complete the following table for data collected at 61°C. Temperature   61°C     Temperature T    K   Report your answer to 2 decimal places Volume of Gas Bubble   7.0 mL     Volume V    L   Report your answer to 2 significant figures Height of the Water Column, h   54 mm     Mercury Equivalent of Water (MEW)     mm   Report your answer to 2 significant figures Barometric Pressure, Pbarometric   760.4 torr     Number of moles of air, nair   0.0002383 moles     R   62.364 L·torr/K·mol     Total Pressure of the Enclosed Gas Sample Ptotal    torr   Report your answer to 1 decimal place Partial Pressure of Air in the Gas Sample, Pair    torr   Report your answer to 1 decimal place Vapor Pressure of Water in the Gas Sample, Pwater    torr   Report your answer to 1 decimal place Natural log of the Vapor Pressure of Water in the Gas Sample, ln (Pwater)    torr   Report your answer to 2 decimal places Reciprocal of Temperature 1/T    K−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.