question_answer

The enthalpy change \[(\Delta H)\] for the reaction, \[{{N}_{2}}(g)+3{{H}_{2}}(g)\xrightarrow{{}}2N{{H}_{3}}(g)\] is  \[-92.38\text{ }kJ\] at 298 K. The internal energy change \[\Delta U\] at 298 K is:

A)  \[-\text{ }92.38\text{ }kJ\]                         

B)  \[-\text{ }87.42\text{ }kJ\]         

C)         \[-97.34\text{ }kJ\]        

D)         \[-89.9kJ\]