Aclosed, rigid tank is filled with a gas modeled as an ideal gas, initially at 27°c and a gage pressure of 300 kpa. if the gas is heated to 77°c, determine the final pressure, expressed as a gage pressure, in kpa. the local atmospheric pressure is 1 atm.

gauge pressure is 133 kPa

Explanation:

given data

initial temperature T1 = 27°C = 300 K

gauge pressure = 300 kPa = 300 × 10³ Pa

atmospheric pressure = 1 atm

final temperature T2 = 77°C = 350 K

to find out

final pressure

solution

we know that gauge pressure is = absolute pressure - atmospheric pressure so

P (gauge ) = 300 × 10³ Pa - 1 × Pa

P (gauge ) = 2 × Pa

so from idea gas equation

  ................1

so

P2 = 2.33 × Pa

so gauge pressure = absolute pressure - atmospheric pressure

gauge pressure = 2.33 ×  - 1.0 ×

gauge pressure = 1.33 × Pa

so gauge pressure is 133 kPa

answer:

i am not 100% sure but i think it is a.)

dont take my word for it

explanation: