A 2.50-g sample of powdered zinc is added to 100.0 mL of a 2.00-M aqueous solution of hydrobromic acid in a calorimeter with a total heat capacity of 448 J/K. The observed increase in temperature is 21.1 K at a constant pressure of one bar. Using these data, calculate the standard enthalpy of reaction.© BrainMass Inc. brainmass.com October 10, 2019, 5:22 am ad1c9bdddf
First, find the q from this reaction to arrive at internal energy, deltaU
q=448J/K * (-21.1K)
Since the system is closed off, the volume is constant, so q is the ...
How do you calculate the standard enthalpy of a reaction from data taken from an experiment? All of the math necessary to solve this problem is given.