Answer to Question #103416 in General Chemistry for Anna

Question

Calculate the volume of .5 mole of gas at 140K and a pressure of 1.2atm

Answer 1

It is given that number of moles of gas =0.5 mole

Temperature of gas =140 K

Pressure = 1.2 atm

we know that , using ideal gas equation

pV= nRT

here, R= gas constant whose value is .082 L atm mol ^-1K ^-1

$1.2 \times V = 0.5 \times 0.082\times 140$

$V= \frac{0.5\times0.082\times 140}{1.2}$

V=4.783 L

So, volume of gas will be V= 4.783 L