22. The temperature (T) in the ideal gas laws equation PV = nRT is in Celsius. T
ID: 114024 • Letter: 2
Question
22. The temperature (T) in the ideal gas laws equation PV = nRT is in Celsius. True , or False 23. One mole of volume of 22 4 liter at standard conditions (O"C and 1 atmosphere) any gas, air, hydrogen, oxygen, nitrogen and hellum, etc, which are close to be an ideal gas, has a rue or False 24. The earth is covered by a blanket of 6 km-thick atmosphere. The atmosphere does not experience the gravitational force from the earth. True or False 25. The atmospheric pressure increases as the altitude gets closer to the earth' surface. True_ or False 26. The density of the atmosphere, like water's, is uniform, regardless of its altitude. True or False 27. The air pressure on the sea level is defined as one standard atmospheric pressure, equal to 1 013 x 10 P True or False Questions 28-30 are the questions regarding a balloon in the earth's atmosphere. 28. If the balloon is filled with air, it does not experience any buoyant force. or False 29. If the balloon is filled with helium or hot air, it will float upward if the buoyant force is larger than the total weight of the balloon Trueor False 30. There is no limit on the floating height of a helium or hot air balloon. That is, the balloon can rise up to the upper edge of the 6-km-thick atmosphere surrounding the earth's surface. True or FalseExplanation / Answer
22.False
PV=nRT
In SI units, P is measured in pascals, V is measured in cubic meters, n is measured in moles, and T in kelvins (the Kelvin scale is a shifted Celsius scale, where 0.00 K = 273.15 °C, the lowest possible temperature)
23.True
One mole of an ideal gas will occupy a volume of 22.4 liters at STP (Standard Temperature and Pressure, 0°C and one-atmosphere pressure).
24.False
The earth's atmosphere will experience gravity at above 6km thick atmosphere for practical example the skydivers will experience gravity at very high altitudes
25.True
The two have an inverse relationship, that is, when altitude increases, atmospheric pressure decreases. This is due to the amount of air on top of you at your current elevation. At lower altitudes, you have more air above you, and thus more pressure; at higher altitudes, you have less air above you, and thus less pressure
26.False
The Earth's atmosphere is an extremely thin sheet of air extending from the surface of the Earth to the edge of space. If the Earth were the size of a basketball, a tightly held pillowcase would represent the thickness of the atmosphere. Gravity holds the atmosphere to the Earth's surface. Within the atmosphere, very complex chemical, thermodynamic, and fluid dynamics effects occur. The atmosphere is not uniform; fluid properties are constantly changing with time and place. We call this change the weather.
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