1.

For the first order thermal decomposition reaction, following data was obtained: Calculate the rate constant.

Answer»

SOLUTION :For first THERMAL REACTION:
`k= 2.303/t LOG (p_(i))/(2p_(i)-p_(t))`
`t= 300s, p_(i) = 0.30 atm, p_(t) = 0.50 atm`.
`k=2.303/t log (0.30)/(2 xx 0.30 -0.50) = 2.303/(300s)log(0.30)/(0.10)`
`=2.303/(300s)log3 = (2.303)/(300s) xx 0.4771 = 0.0036 s^(-1)`


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