Omg I ain’t readying all that my head already hurts
Answer:
Do not form hydrogen bonds amongst themselves and have higher vapor pressure.
Explanation:
The chemical formula for steam is H2O(g)
mass of steam = mole of steam * molar mass of H2O
= 1 * (1*2+16) = 18 g
by E = m * c * change in temperature,
From 140C steam to 100C steam
18 * 2.01 * (140-100) = 1447.2J
latent heat of vaporization of water = 2.26x10^6 J/kg* 0.018 = 40680 J
From 100C water to 0C water
18 * 4.2 * (100-0) = 7560 J
latent heat of fusion of ice = 334 J/g * 18 g = 6012 J
From 0C ice to -45C ice
18 * 2.09 * (45-0)
= 1692.9 J
1447.2 + 40680 + 7560 + 6012 + 1692.9 = 57392.1 J
The air particles in the bubble are forced to expand when we pull up on the plunger.
<h3><u>Explanation:</u></h3>
Pulling creates a large amount of volume , when the volume of the air bubble is increased, air particles inside the bubble tries to accumulate all of the volume by expanding the size of the bubble. Since according to Ideal gas law,
P V = n R T
where P = Pressure of the gas
V = Volume of the gas
n = No. of moles
R = Boltzmann's constant
T = Temperature
We can observe that pressure is inversely proportional to the volume of the gas. Therefore, when we pull up the plunger, the volume of the air bubble is increased and the pressure inside it is decreased.