Are gases more or less dense than liquids or solids at room temperature?

less denser

Explanation:

soild

solid (steel) is the most dense,

gas

the gas (air) is the least dense

liquid

the density of the liquid (water) is in between

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 :

16

explanation:

the marks go by 4s