The order of magnitude of the number of air molecules in a room of volume 50 m³ at STP is 1027 1020 1029 1030
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- What is the volume occupied by 1.40 moles of He gas at standard pressure and temperature? 44.8 L 11.2 L 5.60 L 22.4 L 31.4 LA young male adult takes in about 5.87 x 10-4 m3 of fresh air during a normal breath. Fresh air contains approximately 21% oxygen. Assuming that the pressure in the lungs is 1.09 x 105 Pa and air is an ideal gas at a temperature of 310 K, find the number of oxygen molecules in a normal breath.I need help with this question
- The rms speed of an oxygen molecule (O2) in a container of oxygen gas is 614 m/s. What is the temperature of the gas?One mole of hydrogen gas (molar mass = 2.0 g/mol) has an rms velocity of 2.0 x 10° m/s. To what temperature on the Celsius scale does this correspond? 3.2 x 105 °C O 4.8 x 104 C 3.2 x 102 °C 48°C 6.9°CTwo containers of equal volume each hold samples of the same ideal gas. Container A has 2 times as many molecules as container B. If the gas pressure is the same in the two containers, find the ratio of the the absolute temperatures TA and TB ( i.e TA / TB ) . Calculate to 2 decimals.