1.

For unknown reaction half mole of reactant of total 2 moles reactant is converted in to product time is taken 1 hour.Then calculate how many moles of reactant is present after 4 hours?

Answer»

0.225 MOLE
0.425 mole
0.125 mole
0

Solution :2 mole `to` for 1 mole After 1 HOUR `tot_((1)/(2))` HR.
After 1 hour `(1)/(1)` mole
`t_((1)/(2))`=1Hour so After 2 hour 0.5 mole
`therefore` every `t_((1)/(2))` time After 3 hour 0.250mole
After 4 hour 0.125 mole


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