Please answer number 2 for me thank you Define the following terms: Equilibrium

Question

Please answer number 2 for me thank you Define the following terms: Equilibrium Vapor Pressure Heat of Vaporization Volatile The pressure of a gas in a closed vessel is 84.5 mm Hg at 25 degree C. What is the pressure (in mm Hg) at 75 degree C? Using the following data for water, prepare two graphs using a computer program: Graph 1: Pressure (mm Hg) vs. Temperature (degree C) Graph 2: Natural log of Pressure vs. Inverse Kelvin Temperature For Graph 2, calculate values for the y-intercept (b) and the slope (m). For Graph 2, write the expression for the linear line (y = mx + b) Calculate the AH of vaporization of water. Calculate the Kelvin temperature when the pressure is 200 atm.

Explanation / Answer

P1 = 84.5 mm Hg                   T1 = 25oC + 273 = 298 K

P2 = ? mm Hg                        T2 = 75oC + 273 = 348 K

P is directely praporional to the T

P1 / P2 = T1 / T2

P2 = ( T2 / T1 ) x P1 = ( 348 K / 298 K) x 84.5 mm Hg = 98.67 mm Hg

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