The triple point of iodine is at 90 torr and 115°c. this means that liquid i₂: a) is more dense than i₂
b) cannot exist above 115°c
c) cannot exist at 1 atm pressure
d) cannot have a vapor pressure less than 90 torr.
e) can exist at pressure of 10 torr.

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.