A24 liter tank contains ideal helium gas at 27 degrees c anda pressure of 22 atm. how many moles of gas are in the tank?
a) 76
b) 238
c) 17.5
d) 21.5
e) 138

d)21.5 moles

Explanation:

Given that

L = 24 L

T = 27 °C = 300 K

P = 22 atm

We know that ideal gas equation

P V = n R T

P=Pressure ,V= Volume ,n=Moles ,R=Universal gas constant ,T=Temperature

Now by putting the values

22 x 24 = n x 0.08206 x 300

n= 21.447 moles

n= 21.5 moles

Therefore the number of moles will be 21.5 moles.

The answer is "d".

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle