Question

Barometric Pressure is 29.89 in Hg. Convert the following

a. 68 psig to mm Hg absolute

b. 100 kPag to psia

c. 1000 mm Hg absolute to kPag

d. 5 psia to in Hg vacuum

Answer 1

$1psig=51.71mmHg\\1kpag=0.15psia\\1mmHg=0.13kpag\\1psai=2.04~in~Hg$

(a) 68psig to mm Hg absolute

$~~~~=68\times51.71=3516.28mmHg$

(b) 100 kPag to psia

$~~~=100\times0.15=f15psia$

(c) 1000 mm Hg absolute to kPag

$~~~=1000\times0.13=130kpag$

(d)5 psia to in Hg vacuum

$~~=5\times2.04=10.2in~Hg$