00:01
First of all, let's have a look what all is given in the problem.
00:05
Given is a reaction is given like fe in solid state reacts with 3o2 to form 2fe to 03 and delta h of the reaction is given as minus 165 to kilojoule.
00:23
And after that the mass of fe and mass of oxygen is given.
00:28
Mass of iron atom is given as 10 grams and mass of oxygen is given as 2 grams and what we are supposed to find out is we need to find that how much of the heat will be transferred so we need to find the amount of heat transferred amount of heat and moreover we also need to tell whether the heat is absorbed or released, absorbed or released.
01:07
So let's start with our solution.
01:14
So basically here what is given is given is mass of fe and mass of o2 is given.
01:21
So we can easily calculate number of moles of fe and o2.
01:25
So number of moles is nothing but given mass by molar mass given mass is 10 gram.
01:31
Mular mass of fe is 56 gram per mole.
01:34
So if we calculate this it will come around 0 .18 moles...