Question

Express 108kpa in torr, 0.975 bar in atmospheres, 22.5kpa in atmospheres, and 770 torr in pascals

Answer 1

The pressure in torr is, 810.0 torr.

The pressure in atm is, 0.962 atm.

The pressure in atm is, 0.222 atm.

The pressure in pascals is, 102658 Pa.

Explanation :

The conversion used for pressure from kPa to torr is:

`1kPa=7.5\text{ torr}`

The conversion used for pressure from bar to atm is:

`1atm=1.01325bar`

or,

`1bar=(1)/(1.01325)atm`

The conversion used for pressure from kPa to atm is:

`1atm=101.325kPa`

or,

`1kPa=(1)/(101.325)atm`

The conversion used for pressure from torr to pascals is:

`1\text{ torr}=133.322\text{ pascal}`

(1) Convert 108 kpa in torr

As,
`1kPa=7.5\text{ torr}`

So,
`108kPa=(108kPa)/(1kPa)* 7.5\text{ torr}=810.0\text{ torr}`

The pressure in torr is, 810.0 torr.

(2) Convert 0.975 bar in atmospheres

As,
`1bar=(1)/(1.01325)atm`

So,
`0.975bar=(0.975bar)/(1bar)* (1)/(1.01325)atm=0.962atm`

The pressure in atm is, 0.962 atm.

(3) Convert 22.5 kpa in atmospheres

As,
`1kPa=(1)/(101.325)atm`

So,
`22.5kPa=(22.5kPa)/(1kPa)* (1)/(101.325)atm=0.222atm`

The pressure in atm is, 0.222 atm.

(4) Convert 770 torr in pascals

As,
`1\text{ torr}=133.322\text{ pascal}`

So,
`770\text{ torr}=\frac{770\text{ torr}}{1\text{ torr}}* 133.322\text{ pascal}=102658\text{ pascal}`

The pressure in pascals is, 102658 Pa.