The following four reactions have standard entropy changes (J/K) at 68oC of 150.7, 20.31, 158.1, and 23.92, respectively.
D2(g) ? 2 D(g)
B2(g) ? 2 B(g)
2 HD(g) ? D2(g) + H2(g)
2 HB(g) ? B2(g) + H2(g)
What is the standard entropy change at this temperature for the reaction below ?
B(g) + HD(g) ? D(g) + HB(g)
The correct answer is 132.29 I just dont know how to get to it.