Question

If the pressure of a gas is 2.000 × 104 kPa, what is its pressure in atm? 26.32 atm 197.4 atm 1.013 ´ 106 atm 2.026 ´ 106 atm

Answer 1

For conversion of kPa and atm, the relationship is 1 atm = 101.325 kPa. So for 20000 kPa, the atm number is 20000/101.325=197.4 atm.

Answer 2

Answer : The correct option is, 197.4 atm

Solution :

We are given pressure of gas is
`2* 10^4kPa` and the conversion used for the calculation is,

1 atm = 101.325 kPa

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

As, 101.325 kPa pressure of a gas = 1 atm

So,
`2* 10^4kPa` pressure of a gas =
`(2* 10^4)/(101.325)* 1atm=197.38atm\approx 197.4atm`

Therefore, the pressure in atm is, 197.4 atm