Esumate the vapor pressure, all pressure, relative humidity, and all density at a height of 1800 in into the atmosphere. The total pre is 101 kPa, air temperature is 25°C and the dew point temperature is 15°C near the ground, the lapse rate 7.5°C/km, which is consta both air temperature and dew point temperature. The gas constant R is 287 J/kg-K and constant with respect to altitude. Relative Humidity at 1500m, in % Round to one (1) decimal place

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Hydrogen Energy

Energy is a quantity that cannot be defined, its existence can only be felt. In simple language, if a system possesses energy, it can do a specific kind of work. There are many forms of energy sources which people can use to obtain work. Solar energy, tidal energy, hydroelectric energy, geothermal energy, wind energy are some of the renewable energy sources which are primarily used for the production of electricity.