A Sample of gas originally at 25 degrees C and 1 atm pressure in a 2.5 L container is allowed to expand until the pressure is .85 atm and the temperature is 15 degrees C. What is the final volume of gas?

Question

Did anyone get 2.6 L

Answer 1

T1 =273 +25 =298 K,
T2 = 273 + 15 = 288 K,
p1•V1/T1 = p2•V2/T2,
V2 =p1•V1•T2/T1•p2 = 1•2.5•288/298•0.85 =2.84 atm.

Answer 2

I must have miss entered something! Thanks.