The air pressure P is inversely proportional to the altitude h. write the related variation equation

For a confined, constant volume of gas, the ratio

P

T

is therefore constant (i.e.,

P

T

=

k

). If the gas is initially in “Condition 1” (with P = P1 and T = T1), and then changes to “Condition 2” (with P = P2 and T = T2), we have that

P

1

T

1

=

k

and

P

2

T

2

=

k

, which reduces to

P

1

T

1

=

P

2

T

2

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.