The temperature to which air must be cooled to give a relative humidity of 80 % should be calculated. Concept introduction: The ideal gas equation can be expressed as follows, P V = n R T Gay-Lussac’s law gives the relationship between the pressure of an ideal gas and a temperature of an ideal gas. According to gay-Lussac’s law, the temperature of the ideal gas on the Kelvin scale is directly proportional to the pressure of the ideal gas at constant volume. This law can be expressed as follows: P 1 T 1 = P 2 T 2 The conversion factor to convert ° C to Kelvin is, T ( K ) = T ( ° C ) + 273

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Chapter 6, Problem 115IAE

Interpretation Introduction

Interpretation:

The temperature to which air must be cooled to give a relative humidity of 80 % should be calculated.

Concept introduction:

The ideal gas equation can be expressed as follows,

PV=nRT

Gay-Lussac’s law gives the relationship between the pressure of an ideal gas and a temperature of an ideal gas. According to gay-Lussac’s law, the temperature of the ideal gas on the Kelvin scale is directly proportional to the pressure of the ideal gas at constant volume. This law can be expressed as follows:

P1T1=P2T2

The conversion factor to convert °C to Kelvin is,

T(K)=T(°C)+273

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