Question

2. The pressure of the oxygen gas inside a

canister is 5.00 atm at 25 degrees C. The
canister is placed in a freezer. If the
temperature falls to -10 degrees Celsius,
what is the new pressure inside the canister?
3,41 atm
12.5 atm
4.41 atm
12.5 atm

Answer 1

Answer: 4.41 atm

Step-by-step explanation:

Given that,

Original pressure of oxygen gas (P1) = 5.00 atm

Original temperature of oxygen gas (T1) = 25°C

[Convert 25°C to Kelvin by adding 273

25°C + 273 = 298K

New pressure of oxygen gas (P2) = ?

New temperature of oxygen gas (T2) = -10°C

[Convert -10°C to Kelvin by adding 273

-10°C + 273 = 263K

Since pressure and temperature are given while volume is held constant, apply the formula for Charle's law

P1/T1 = P2/T2

5.00 atm /298K = P2/263K

To get the value of P2, cross multiply

5.00 atm x 263K = 298K x V2

1315 atm•K = 298K•V2

V2 = 1315 atm•K / 298K

V2 = 4.41 atm

Thus, the new pressure inside the canister is 4.41 atmosphere