Answer
Sounds travel slowest in gasses so it would be air
Answer:
277.16 K is the temperature of the gas.
Explanation:
Using ideal gas equation:
PV = nRT
where,
P = Pressure of gas =
V = Volume of gas =
n = number of moles of gas =
R = Gas constant = 8.314 J/mol.K
T = Temperature of gas = ?
Putting values in above equation, we get:
T = 277.16 K
277.16 K is the temperature of the gas.
Answer:
Explanation:
given volume =5.3 litres
as we know that 1 litre =1 dm3
therefore 5.3 litres =5.3 dm3
now moles =given mass /molar mass
so mass =moles*molar mass
in order to find mass of carbon we need to find moles
therefore moles=given volume/standard volume standard volume at STP is 22.4 dm3
moles= 5.3/22.4
moles=0.236=0.24
now mass of carbon dioxide =moles*molar mass
mass = 0.24*44
mass=10.56kg
Answer:
UMM ithinki can help u with this
Explanation:
<span>The answer is A. This is because sunlight is composed of various wavelengths in the
electromagnetic spectrum. In the visible
light spectrum, red light has a higher frequency
(lower wavelength) than blue light that has a lower frequency (higher wavelength).
Therefore red light has higher energy than blue light hence able to penetrate
more into the atmosphere before scattering, compared to blue light. At sunrise
and sunset, due to the relative angle of
the sun to the observer, the sun rays
have to penetrate a thicker layer to the atmosphere
before reaching the observer</span>