Answer Happy

1. The temperature of a gas above liquid water is 2.42 °C and the corresponding pressure was measured to be 100.3 kPa. The recorded total pressure of gas above the liquid was measured to be 142.2 kPa after heating the liquid, and the vapor pressure of water at that temperature was 14.33 kPa. What was the final temperature of the liquid in °C? (10 points) 747₁+ 273-15 = 661.023K
A gas system has an initial temperature of 42.5 °C with initial pressure of 98.36 kPa. When heated, the (5 points) pressure changes to 137.5 kPa at constant volume. What was the final temperature in °C?
Using the data below, calculate the molar heat of vaporization of the unknown substance (in units of kJ/mol). (10 points) 6 5 4 3 2 1 0 0.0025 0.0026 0.0027 y=-3125.2x+13.248 R²=0.9375 0.0028 0.0029 0.003 1/T, T in Kelvins 0.0031 0.0032 0.0033 0.0034 0.0035