Answer :
The equivalent pressure of 400 torr is approximately (c) 53.3 kPa.
A conversion from torr to kilopascals (kPa) can be done using the relationship that 760 torr is equal to 101.3 kPa. Therefore, we can use the following proportion to solve for the unknown pressure in kPa:
(400 torr) * (101.3 kPa / 760 torr)
Perform the calculation:
400 torr * 101.3 kPa / 760 torr ≈ 53.3 kPa
So, the equivalent pressure of 400. torr is approximately 53.3 kPa.
