00:01
Hello students, let's begin with this question.
00:02
In this question, this reaction is given and one value is given that is plus 73 .2 kilojoule.
00:08
So we have to answer some questions related to this.
00:11
So firstly, in the first part, we have to find out which of the following is the best true related to this reaction.
00:18
Now, first one is the reaction absorbs the heat.
00:21
The reaction is an underthermic reaction.
00:24
So in this case, the delta h is equal to plus 7 .3 .2 kilojoule.
00:30
So this means delta h is positive.
00:32
This means the reaction is the endothermic reaction.
00:38
And in this case, in endothermic reaction, delta h is positive.
00:42
So firstly, v1 is true.
00:45
C is delta h is equals to plus 73 .2 kilojoules.
00:51
This is also true.
00:53
And in the endothermic reaction generally there is absorption of heat.
00:58
So, so in this case the correct option is a, b and c, these three statements are related to this and these three are the true regarding this reaction.
01:13
Now this is the first part.
01:16
Now in the second part of this question, give the equation, this equation is given, that is two calcium, two moles of calcium react with o2 and they will produce to cao.
01:27
And how much heat is evolved in the production of 7 .0 mole of calcium oxide...