Moles off Energy and you can Volume: Avogadro’s Law

How many moles of gaseous boron trifluoride, BFstep 3, are contained in a 4.34ten-L bulb at 788.0 K if the pressure is 1.dos20 atm? How many grams of BF3?

Iodine, I2, is a solid at room temperature but sublimes (converts from a solid into a gas) when warmed. What is the temperature in a 73.3-mL bulb that contains 0.292 g of I2 vapor at a pressure of 0.462 atm?

A top height balloon is full of step one.41 ten 4 L from hydrogen at a temperature out of 21 °C and you will a stress of 745 torr. What is the quantity of the fresh balloon from the a level away from 20 km, where the temperature is –forty eight °C as well as the stress are 63.step one torr?

A cylinder of medical oxygen has a volume of 35.4 L, and contains O2 at a pressure of 151 atm and a temperature of 25 °C. What volume of O2 does this correspond to at normal body conditions, that is, 1 atm and 37 °C?

An enormous scuba container ((Figure)) having an amount of 18 L is actually rated to possess a stress out of 220 bar. Brand new tank are occupied within 20 °C features adequate heavens to offer 1860 L from sky to a scuba diver at the a force away from dos.37 automatic teller machine (a depth off 45 ft). Is actually this new container filled so you can capabilities at 20 °C?

A 20.0-L cylinder containing kg of butane, C4H10, was opened to the atmosphere. Calculate the mass of the gas remaining in the cylinder if it were opened and the gas escaped until the pressure in the cylinder was equal to the atmospheric pressure, 0.983 atm, and a temperature of 27 °C.

While resting, the average 70-kg human male consumes 14 L of pure O2 per hour at 25 °C and 100 kPa. How many moles of O2 are consumed by a 70 kg man while resting for 1.0 h?

A liter of methane gas, CH4, at STP contains more atoms of hydrogen than does a liter of pure hydrogen gas, H2, at STP. Using Avogadro’s law as a starting point, explain why.

The effect of chlorofluorocarbons (such as CCl2F2) on the depletion of the ozone layer is well known. The use of substitutes, such as CH3CH2F(g), for the chlorofluorocarbons, has largely corrected the problem. Calculate the volume occupied by 10.0 g of each of these compounds at STP:

Since step 1 g of one’s radioactive feature radium decays more step 1 12 months, they produces step one.sixteen ten 18 leader dust (helium nuclei). Per leader particle gets an atom from helium gasoline. What’s the stress into the pascal of one’s helium gas produced if it takes up a level of 125 mL on a temperature off twenty-five °C?

Good balloon that have a number of L on 21 °C and you may 0.981 atm arrives and simply barely clears the top of Install Crumpet when you look at the United kingdom Columbia. If for example the last quantity of the balloon are L from the good heat of 5.24 °C, what is the tension experienced because of the balloon whilst clears Mount Crumpet?

If your heat off a predetermined level of a petrol is doubled within ongoing volume, what will happen on pressure?

In the event your number of a predetermined number of a petrol was tripled on constant temperature, what are the results towards the tension?


Solution (a) The latest normally include some isobutane gas at a steady regularity, so if the temperature is actually improved by the temperature, the pressure increases proportionately. High temperature can result in high-pressure, evoking the can to burst. (Plus, isobutane is flammable, so incineration may cause the newest can also be so you can explode.)

Check your Training What is the quantity of an example off ethane on 467 K and you will step 1.step one atm if this occupies 405 mL during the 298 K and you may 1.step one automatic teller machine?

Look at the Reading Calculate pressure inside bar out of 2520 moles away from hydrogen energy stored from the 27 °C about 180-L sites tank off a modern-day hydrogen-driven vehicles.

Fundamental Requirements off Heat and you may Stress

The volume off an automible air handbag are 66.8 L when expensive from the 25 °C which have 77.8 g regarding nitrogen gas. What was the pressure regarding the purse for the kPa?


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