At which temperature will water boil when the external pressure is 31 kpa

TO solve this problem, we simply have to find for the temperature of saturated water when the external pressure is 31 kPa. When the atmospheric pressure above a liquid equals its vapour pressure, then that liquid will boil. From the tables, the temperature at 31 kPa is about:

70 °C

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr

3. dark matter

empty space could also be a simple vacuum