A solution of a strong alkaline, such as sodium hydroxide, at concentration 1 mol dm â3, has a pH of 14. Thus, measured pH values will lie mostly in the range 0 to 14, though negative pH values and values above 14 are entirely possible.
The Saffir-Simpson scale measures the intensity of a hurricane. Wind speed is measured on a scale of 1-5 to give an estimate of potential property damage and flooding along the coast. The Categories are as follows:Category One Hurricane: Winds 74-95 mph.Category Two Hurricane: Winds 96-110 mph.ind speed is measured on a scale of 1-5 to give an estimate of potential property damage and flooding along the coast. The Categories are as follows: Category One Hurricane: Winds 74-95 mph.
Beaufort Wind Scale. Beaufort Number or Force: Wind Speed: Description: Effects Land / Sea: mph: km/hr: knots: 0 <1 <1 <1: Calm: Still, calm air, smoke will rise vertically. Water is mirror-like. 1: 1-3 mph: 1-5 kph: 1-3 knots: Light Air: Rising smoke drifts, wind vane is inactive. Small ripples appear on water surface. 2: 4-7 mph: 6-11 kph: 4-6 knots: Light Breeze