Question

Помогите решить задачу.

Answer 1

pV=RT
(p/p0)^2+(V/V0)^2=1
***********
p/p0=x
V/V0=y
x^2+y^2=1
T=pV/R=x*y*po*Vo/R
********
x=sin(fi)
y=cos(fi)
x*y=sin(fi)*cos(fi)=1/2*sin(2fi)
max(x*y)=max(1/2*sin(2fi))=1/2
max(T)=max(pV/R) = max(x*y*po*Vo/R) = max(x*y)*po*Vo/R = 1/2*po*Vo/R = po*Vo/ (2R) = 10^5*50*10^(-3)/(2*8,31) К = 300,8424 К ~ 301 К