A student forgot to add reaction mixture...

A student forgot to add reaction mixture to round bottomed flask at `27^(@)C,` but he placed the flask on the flame. After a lapse of time, he realised his mistake, using a pyrometer, he found the temperature of the flask was `477^(@)C.` What fraction of the air would have been expelled out?

`0.6`

`0.45`

` 0.8`

`0.5 `

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A student forgot to add the reaction mixture to the round bottomed flask at '27^circ C', but he/she placed the flask on the flame. After a lapse of time, he realised his mistake, using a pyrometer, he found the temperature of the flask was '477^circ C'. What fraction of the air would have been expelled out?

3.5 ml ethyl acetate was added to a flask containing 100 ml of 0.1 M HCI placed in a thermostat maintained at 30^(@) C 5 ml of the reaction mixture was withdrawn at different interval of time and after chilling titrated against standard NaOH the following data were obtained Time (minutes) 0 75 119 183 infty NaOH used (mL) 9.62 12.10 13.10 14.75 21.05 From the above data show that the hydrolysis of ethyl acetate is a first order reaction

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