The vapour pressure of hair spray using Freon- 12 at 40 ° C has to be estimated. Concept introduction: Clausius-Clapeyron expression correlates the pressure and temperature for the processes that includes the phase transitions. Clausius-Clapeyron equation is shown below. ln ( p 2 p 1 ) = − Δ H vaporization R ( 1 T 2 − 1 T 1 )

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Chapter 4, Problem 4B.3P

Interpretation Introduction

Interpretation: The vapour pressure of hair spray using Freon-12 at 40 °C has to be estimated.

Concept introduction: Clausius-Clapeyron expression correlates the pressure and temperature for the processes that includes the phase transitions. Clausius-Clapeyron equation is shown below.

ln(p2p1)=−ΔHvaporizationR(1T2−1T1)

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