In another reaction, a student reacts 15.2 moles of B with excess A. What is the heat that comes out of this second reaction (qR_xN-2)?

Chemistry by Geoffrey
  1. (14 points) A student reacts 2.0 moles A and 4.0 moles of B in an insulated container. The reaction takes place in water (50.0 g), in a coffee cup. The water gains heat, raising its temperature 23.6 ° C (AT). Water has a specific heat capacity of 4.184 J/g ° C.

A + 2 B              3 C AHRxN = ?

  1. Energy is absorbed by the water. What is ATER?
  2. Energy is released by the reaction. What is qRxN? (this one is easy) How much heat per mol of A (or per 2 mol of B), by the reaction (AHRXN)?
  3. In another reaction, a student reacts 15.2 moles of B with excess A. What is the heat that comes out of this second reaction (qR_xN-2)?

(HINT : USE DIMENSIONAL ANALYSIS)