8. A manometer reading is 100 mmHg. Calculate the gauge and absolute pressure in bar. The density of mercury is 13,600kg/m3, gravitational acceleration is 9.81 m/s² and atmospheric pressure is 1.013

bar. (1 mark) Pg=Pgh = 13600 x 9.81 x 0-1 = 13341 P₁ x 105 = 0.133 bar Answer: = 1-146 bar Pabs. = Pg + Pat m = 0.133+1.013