One mole of A present in a closed vessel undergoes decays as:
`._(Z)A^(m) rarr ._(Z - 4)B^(m - 8) + 2 (._(2)He^(4))`
What will be the volume of helium gas collocted at `STP` afterd 20 days `(t_(1//2) "of" A = 10` days)?

One mole of X present in a closed vessel undergoes decays as: ._(Z)X^(A) rarr ._(Z - 2)Y^(A - 4) + (._(2)He^(4)) What will be the volume of helium gas collected as SATP and STP (1 bar pressures, 273 K temperature) after 20 days (t_(1//2) "of" A = 10 days)?

One mole of A present in a closed vessel undergoes decay as: ._(Z)^(A) rarr ._(Z-4)^(m-8)B + 2 ._(2)^(4)He . The volume of He collected at NTP after 20 day ( t_(1//2) for A = 10 day) is:

One mole of a present in a closed vessel undergoes decay as ""_(z)""^(m)Ato""_(Z-4)""^(m-8)B+2""_(2)""^(4)He . The volume of He collected at NTP a fter 20 days is ( t""_(1//2)=10 days)

A certain radio isotope ._(Z)X^(A) (half life = 10 days) decays to give ._(Z-2)Y^(A-4) . If 1.0 g atom of X is kept in a sealed vessel, find the volume of helium accumulated at STP in 20 days ?

In a nuclear decay ""_(Z)X^(A) to ""_(z-1)M^(A-4) to ""_(z-2)N^(A-4) the particles emitted are in sequence:

The two nuclides z^(A^(m)) and ""_(z-2)B^(m-4) are known as