1 g-atom of is placed in an evacuated tube of volume 5 litre

CHEMISTRY · Subjective · US High School · Chemistry · Atomic Structure & Nuclear · Atomic Structure & Nuclear

Problem

1 g-atom of

\text{Ra}^{226}

is placed in an evacuated tube of volume 5 litre. Assuming that each

{}_{88}\text{Ra}^{226}

nucleus is an

\alpha

-emitter and all the contents are present in tube, calculate the total pressure of gases and partial pressure of He collected in tube at

27^\circ\text{C}

after the end of 800 year.

t_{1/2}

of Ra is 1600 year. Neglect volume occupied by undecayed Ra.