A student rubbed a plastic comb with a piece of silk cloth. She held the comb near running water and saw that the stream of water moved toward the comb.
Why did the stream of water move toward the comb?
A Rubbing the comb caused it to get hot so it repelled the water.
O B. Rubbing the comb caused charges to build up, so it repelled the water.
C. Rubbing the comb caused it to become magnetized, so it attracted the water.
O D. Rubbing the comb caused static electricity to build up, so it attracted the water.

Rubbing the comb caused static electricity to build up, so it attracted the water.

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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 :