General Science - Online Test
A 5 year old girl Sita and her grandmother, together met an accident. Her grandmother got her leg fractured but Sita didn’t suffer from any fractures :
i. At young age bones are more flexible and contain lots of organic matter.
ii. Sita’s has a more powerful immune system than her grandmother.
iii. In old people bones become hard and brittle.
This field is higher near the inner cylinder.
Step 1
Number of moles of H2 in 67.2 L of H2
=
=3 moles
Step 2 /
Number of molecules in 1 moles of H2
=6.02 x 1023 molecules of H2
Since H2 is a diatomic gas the number of atoms in 1 mole of H2
= ( 2 x 6.02 x 1023 )
= 12.04 x 1023 atoms of H atoms
(since , one molecule of H2 contains 2 atoms ).
Number of atoms in 3 moles of H2
= ( 3 x 12.04 x 1023 )
=3.612x 1024 atoms of H.
