Please help A gas shortage tank is designed to hold a fixed volume and amount of gas at 1.74 atm and 27⁰C. To prevent excessive pressure duebto overheating, the tank is fitted with a relief valve that opens at 2.00 atm. To what temperature (⁰C) must the gas rise in order to open the valve?

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :

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