1 files changed, 5 insertions, 5 deletions
diff --git a/3428/CH21/EX14.21.2/Ex14_21_2.sce b/3428/CH21/EX14.21.2/Ex14_21_2.sce
index 0c4b82950..53754e614 100644
--- a/3428/CH21/EX14.21.2/Ex14_21_2.sce
+++ b/3428/CH21/EX14.21.2/Ex14_21_2.sce
@@ -2,11 +2,11 @@
 //To calculate the number of gas molecules left.
 clc;
 //PV=nRT
-P=(10^-5*(1/760))
-V=(10^-3*(1/1000))
-R=0.0821
-T=298
-n=((P*V)/(R*T))
+P=(10^-5*(1/760))                   //atm
+V=(10^-3*(1/1000))                  //L
+R=0.0821                          //LatmK^-1mol^-1
+T=298                              //K
+n=((P*V)/(R*T))                       //moles
 N_a=6.023*10^23                          //1 mole gas=6.023*10^23 molecules
 N=n*N_a
 disp(N,'No. of gas molecules left')