Question

Some students believe that teachers are full of hot air. If I inhale 2.1 liters of gas at a temperature of 200 C and it heats to a temperature of 370 C in my lungs, what is the new volume of the gas?

Answer 1

2.86L

Step-by-step explanation:

Given parameters:

V1 = 2.1L

T1 = 200°C = 200 + 273 = 473K

T 2 = 370°C = 370 + 273 = 643K

Unknown:

V2 = ?

Solution:

Since pressure is constant, we apply the Charles's law;

`(V1)/(T1)` =
`(V2)/(T2)`

V is volume

T is the temperature

1 is the initial state

2 is the new state

`(2.1)/(473)` =
`(V2)/(643)`

V2 = 2.86L