In liquid water, each molecule is hydrogen-bonded to approximately 3.4 molecules of water. what effect would freezing water have on the number of hydrogen bonds? heating water?

1. Freezing water: The number of hydrogen bonds increase.

2. Heating water: Hydrogen bonds break

Explanation:

In the liquid state, hydrogen bonds are continuously formed and broken and the average amount is 3.4.  During freezing, molecule's energy decreases and there is less energy to break hydrogen bonds and for this reason, these bonds are more stable and average hydrogend bonds are close to 4 bonds.

When liquid water is heated, the kinetic energy raises and it causes the hydrogen bonds to break.

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 :

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.