Mathcad Problems for chapter 2

1.  Use mathcad: One mole of carbon dioxide gas is heated at constant pressure from 25^oC to 1000 ^oC, at constant pressure.  Calculate q, DU and DH for the process.  Take into account the dependence of C_pm on the temperature. What error results if C_pm is assumed to be constant and equal to its value at 25 ^oC? Sample Mathcad

2. Use mathcad: Ammonia is produced commercially using the reaction:

N₂(g)  + 3 H₂(g) = 2 NH₃(g)

Typically, the reaction is carried out at a temperature of 450 ^oC.  What is D_rH^o for this reaction at 450 ^oC?  Take into account the temperature dependence of the heat capacities. Use data from the textbook.Sample Mathcad