V1 = 1.14 L T1 = 21 °C V2 = ? L T2 = 42 °C

Answer 1

IF pressure is held constant, then:

However this only works if you use absolute temperature (K). You can convert to Kelvin by adding 273.15 to degrees C:

T₁ = 21 + 273.15 = 294.15 K

T₂ = 42 + 273.15 = 315.15 K

So:

1.14/294.15 = V₂/315.15

V₂ = (1.14)(315.15)/294.15 = 1.22 L