In: Chemistry
we have to solve this question using gas laws.
I have used the Charles law, which is one of the gas laws and relates volume to the temperature of the gas.
we have
Initial Volume:(Vi)=400 cm³
Initial Temperature:(Ti)=7°C = 273 +7 = 280K
Final Temperature:(Tf)=27°C = 300K
we have to find the
Final Volume: (Vf)=?
V1/T1=V2/T2
Vi/Ti=Vf/Tf
400/280=Vf/300
Vf=400*300/280
Vf=428.5
We need the volume of air expanded so
Vf-Vi=428.5-400
=28.5cm³
=28.5cm³