d*sin(a)=kl
k=1,2*0,001/5*10^-7=0,24*10^2=24
T1=273+25=298 K p=const T2=?
V1/T1=V2/T2 V2=V1/2 T2=T1/2=298/2=149.K
t=273-149.=-124 C