The normal boiling point of SO2 is 263.1 K and that of NH3 is 239.7 K. Which of the statements below is true at -40 °C? Question 9 options:   The vapor pressure of SO2 is greater than that of NH3.   There is no way to predict the relative vapor pressures.   The vapor pressure of SO2 is less than that of NH3.   The vapor pressure of SO2 is equal that of NH3

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