A sample of C₃H₄Br₂ has a normal boiling temperature of 131.5 °C. The enthalpy of vaporization for this compound is 35.4 kJ/mol. a) What would be the boiling temperature in °C of C₃H₄Br₂ at a pressure of 540 mm Hg? Report your answer using three significant figures. b) How much energy would be required to heat a 78.1 gram sample of liquid C₃H₄Br₂ from 97.5 °C to a gas at 187.2 °C? The specific heat for the liquid is 0.865 J/g･°C and the specific heat for the gas is 0.364 J/g･°C.
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.
A sample of C₃H₄Br₂ has a normal boiling temperature of 131.5 °C. The enthalpy of vaporization for this compound is 35.4 kJ/mol.
a) What would be the boiling temperature in °C of C₃H₄Br₂ at a pressure of 540 mm Hg? Report your answer using three significant figures.
b) How much energy would be required to heat a 78.1 gram sample of liquid C₃H₄Br₂ from 97.5 °C to a gas at 187.2 °C? The specific heat for the liquid is 0.865 J/g･°C and the specific heat for the gas is 0.364 J/g･°C.
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