Question

calcula el numero de moles de un gas que ocupa un volumen de 3 litros,a una temperatura de 20 centigrados y 2,5 atmofesra de presion

Answer 1

n = moles

P x V = n x R x T

R = 0.0821 (atm L/molK)

T = 20 + 273 = 293 K

n =  P   x   V
       ````````````
           R x T

n =       2.5 atm x  3  L
         ````````````````````````````
   0.0821 (atm L/molK) x 293 K

n = 0.3117  moles