If the required pressure in the tyre of a car is 199 kPa then
(i) what is the gauge pressure?
(ii) what is the absolute pressure?
(i) Gauge pressure
${ p }{ g }$ = 190 k Pa
(ii) Absolute pressure
p = ${ p }{ a }$ +
${ p }_{ g }$ = 101k Pa + 199k Pa = 300k Pa