Which law states that the volume and absoluite temperature of a fixed quantity of gas are directly proportional under constant
pressure conditions
Bolest
Charles's law
Datens tow
alussac's law

A. Charles's law

Explanation:

Charles's law states that volume of given gas is directly proportional to the temperature at constant pressure. Directly means if one increases, the other also increases. If temperature of a gas increases, the particles of gas molecules start expanding. Due to expansion, the particles occupy more space and thus volume of the gas molecules increased.

n2(g) + 3h2-> 2nh3(g)   this is the balanced equation

note the mole ratio between n2, h2 and nh3.   it is 1 : 3 : 2   this will be important.

moles n2 present = 28.0 g n2 x 1 mole n2/28 g = 1 mole n2 present

moles h2 present = 25.0 g h2 x 1 mole h2/2 g = 12.5 moles h2 present

based on mole ratio, n2 is limiting in this situation because there is more than enough h2 but not enough n2.

moles nh3 that can be produced = 1 mole n2 x 2 moles nh3/mole n2 = 2 moles nh3 can be produced

grams of nh3 that can be produced = 2 moles nh3 x 17 g/mole = 34 grams of nh3 can be produced

note:   the key to this problem is recognizing that n2 is limiting, and therefore limits how much nh3 can be produced.

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.