What causes changes in weather? a. air masses move and meet. c. water evaporates. b. the air gets more humid. d. clouds form.

A) Air masses move and meet.

Explanation:The earth revolves round the sun this brings about the atmosphere composing of different air masses and speed that is distinct in temperature, atmospheric pressure,moisture. The air maases meets and move brings about a change in weather

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.  

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 :