glass laboratory

Question

A glass laboratory flask is filled with gas at 27 ∘C∘C and 0.94 atmatm pressure, sealed, and then heated to 97 ∘C∘C. What is the pressure inside the flask?

Express your answer using two significant figures.

Answer 1

initial temperature = T1 = 27C + 273 = 303K

initial pressure = 0.94 atm

final temperature = 97C + 273 = 370K

final pressure = ?

P1/T1 = P2/T2

0.94 atm / 303K = P2 / 370K

P2 = 1.148 atm

Rounded to 2 sig. figs. ...

P2 = 1.1 atm