The vapor pressure of Substance X is measured at several temperatures: temperature vapor pressure -97. °C 0.0142 atm 0 -84. °C -71. °C Use this information to calculate the enthalpy of vaporization of X. Round your answer to 2 significant digits. Be sure your answer contains a correct unit symbol. Explanation 0.0791 atm Check 0.353 atm 0x1 ロ･ロ X H 010 3 © 2023 McGraw Hill LLC. All I
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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Given that -
The vapour pressures at different temperatures for substance X are -
| Temperature | Vapour Pressure |
| -97°C = 176 K | 0.0142 atm |
| -84°C = 189 K | 0.0791 atm |
| -71°C = 202 K | 0.353 atm |
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