A student researches the use of a pressure cooker to cook foods quickly at temperatures above the normal boiling point of water. a. How could you use a particle model to describe why the pressure in a sealed pressure cooker increases as the water is heated.

Please write a body paragraph. Don't combine them I want two paragraphs.

b. What effect does the higher pressure have on the boiling point of water? Explain your reasoning.

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol