How can you distinguish a from b?

The question is an illustration of physical and chemical properties.

To distinguish A from B, you simply observe their physical and chemical properties.

When taking note of physical changes, you simply observe how the form of the substance changes.

For instance, when substance A changes from liquid to solid, then substance A has undergone a physical change.

However, the chemical change to observe includes the formation of a new substance.

For instance, when a new substance (say B1) is formed from substance B, then you know that substance B has undergone a chemical change.

Hence, to distinguish between A and B, you have to find out their physical and chemical properties.

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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 :