To apply the ideal gas law to problems involving temperature, pressure, volume, and moles of a gas. The four properties of gases (pressure PPP, volume VVV, temperature TTT, and moles of gas nnn) are related by a single expression known as the ideal gas law: PV=nRTPV=nRT The variable RRR is known as the universal gas constant and has the value R=0.0821 L⋅atm/(mole⋅K)R=0.0821 L⋅atm/(mole⋅K). The units of RRR dictate the units for all other quantities, so when using this value of RRR, use units of atmospheres for pressure, liters for volume, and kelvins for temperature. A balloon is floating around outside your window. The temperature outside is 37 ∘C∘C , and the air pressure is 0.800 atmatm . Your neighbor, who released the balloon, tells you that he filled it with 4.80 molesmoles of gas. What is the volume of gas inside this balloon? Express your answer to three significant figures and include the appropriate units.

The ideal gas law describes the relationship among the pressure P, volume V, number of moles n, and absolute temperature T of an ideal gas. Here is the relationship expressed mathematically: PV = nRT where R is a proportionality constant. The units of R are determined by the units of pressure and volume used in the equation. When bar used for pressure and L for volume, the appropriate R value is 0.08314 L bar mol-¹ K-¹. Part A How many air molecules are in a 4.05 x 3.66 x 3.05 m³ room? Assume atmospheric pressure of 1.00 bar, a room temperature of 20.0 °C, and ideal behavior. Express your answer using three significant figures. ► View Available Hint(s) VE ΑΣΦ + Review | Constants | molecules

Using the ideal gas law (PV=nRT), calculate the temperature of a gas in a canister 10.4 L in volume. The pressure is 234,567 Pa and there are 32 moles.  (R= 0.0821 L atm/ mol K) (101,325 Pa/1 atm).

STP (standard temperature and pressure) is used as a reference point for the molar volume of an ideal gas. In the USA, most chemists, most general chemistry texts, and OWL use STP=0°C, 1 atm, where the molar volume = volume is 22.7 L/mol. Do not confuse the two. 22.4 L/mol. If the reference pressure is chosen to be 1 bar, the molar A 0.610 mol sample of methane gas occupies a volume of L at STP.