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+//clc()

+Td = 328;//K ( dry bulb )

+P = 101.3;//kPa

+PS = 10;//%

+//refering to the psychometric chart, corresponding to 328 K and 10% saturation

+Y1 = 0.012;//kg water / kg dry air

+disp("kg water / kg dry air",Y1,"(a)Absolute humidity = ")

+//Y1 = Pa * 18 / ( P - Pa ) * 29

+Pa = Y1 * P * 29 /( 18 + Y1 * 29 );

+disp("kPa",Pa,"(b)Partial Pressure of water vapour = ")

+//using psychometric chart, saturation humidity at 328 K is given as

+Y1s = 0.115;//kg water / kg dry air

+disp("kg water / kg dry air",Y1s,"(c)The absolute humidity at 328K = ")

+//at saturation partial pressure = vapour pressure

+Pas = Y1s * P * 29 /( 18 + Y1s * 29 ); 

+disp("kPa",Pas,"(d)Vapour Pressure of water vapour = ")

+RS = Pa * 100 / Pas;

+disp("%",RS,"(e)Percent relative saturation = ")

+//using psychometric chart, moving horizontally keeping humidity constant to 100% saturation, we get dew point as,

+T = 290;//K

+disp("K",T,"(f)Dew point = ")
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