Answer:
D
Explanation:
1.) First convert to molar mass
18.1*1/231.533*18.01528=
Answer:
Explanation:
Applying the Ideal Gas Equation :
Finding n :
- n = 64 g / 32 g/mole (<u>Oxygen is diatomic</u>)
- <u>n = 2 moles</u>
Solving for P :
- P = 2 × 0.0831 × 300 / 10 (<u>Temp. should be converted to K</u>)
- P = 60 × 0.0831
- P = 4.9
∴ The pressure inside the flask in bar is 4.9.
Answer:
The options to this question are incomplete. The remaining two options are:
C. Water expands and becomes less dense when it freezes.
D. Water contracts and becomes less dense when it freezes.
The answer is C. Water expands and becomes less dense when it freezes.
Explanation:
Water is a chemical compound that exists in the three states of matter viz: solid as ICE, gas as vapour and liquid as WATER. However, due to the DENSITY properties of each state, ice floats on water. Ice is less dense than water.
When liquid water freezes, it's particles expands i.e increases in volume. Hence, it becomes less dense than water. This causes an iceberg to float on water because it has a lesser density compared to the liquid water caused by an expansion of its particles.
Answer:
At the higher altitude, the new volume is 750.2L
Explanation:
If we decompose the Ideal Gases Law for the two situations (initial and final), we can determine this relaion:
P₁ . V₁ / T₁ = P₂ . V₂ / T₂
Number of moles does not change, and R stays the same.
Let's make some conversions, before:
752 mmHg . 1 atm / 760mmHg = 0.989 atm
24.3°C + 273 = 297.3K
0.0708 bar . 0.986 atm / 1bar = 0.070 atm
-5.41°C + 273 = 267.59 K
We replace: (0.989 atm . 59L) / 297.3K = (0.070 atm . V₂) / 267.59K
[(0.989 atm . 59L) / 297.3K] . 267.59K = 0.070 atm . V₂
52.5 atm.L = 0.070 atm . V₂
V₂ = 52.5 atm.L / 0.070atm = 750.2L