00:01
Hi there.
00:02
In this question we have some pressure conversions to do.
00:06
In each one we are starting with the pressure on top of mount everest, which on average is 235 millimeters of mercury.
00:20
Pressure has lots of possible different units and in letter a they want us to convert from millimeters of mercury to tor.
00:30
Well in a lot of cases i know the value of standard pressure in each of these.
00:36
So i know that 760 millimeters of hg is standard pressure.
00:43
I also know that 760 tor is standard pressure.
00:48
So in other words, these two values are equal and i can use this as a conversion factor.
00:54
Notice actually that millimeter and tor are the same.
00:58
So this gives us 235 tor.
01:02
All right.
01:05
Next, we are converting from millimeters of mercury to pounds per square inch.
01:12
And i know that 760 millimeters of mercury is standard pressure, and i know that 14 .70 psi is standard pressure.
01:21
So i can use that as my conversion factor.
01:25
So starting with the 235 millimeters of mercury, standard pressure in psi is 14 .70, and standard pressure in millimeters of mercury is 7 .0...