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IIT JEE 2006 Paper : CHEMISTRY Section IV - Subjective Problems

This section contains 4 numerical problems. The answer to each of the questions would lie between 0 and 9999. You have to simply write the correct numerical value in the input box provided. You will be awarded 6 marks for correct numerical value and 0 for an incorrect value.
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The reaction   2CO + O2 ¾® 2CO2, ΔH = −560 kJ.mol −1 at T = 500 K
is carried out under a constant volume of 1 L. What will be the magnitude of the change in internal energy (|ΔU|) of the system in kJ, if the pressure of the system changes from 70 atm to 40 atm as the reaction goes to completion? 1 L.atm = 0.1 kJ.

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