For each pair of substances, choose the one that you expect to have the higher standard molar entropy (S°) at 25 °C. Explain your choices. e. NO2( g); CH3CH2CH3( g)

Video transcript

Hello everyone today we are being asked to identify which compound among Ammonia and Benzene have the higher standard molecular entropy at 25°C. So in this situation they both have the they're both in the same phase, right? They are both in a gas form. And so we have to then compare their masses. And so we say that the higher the molecular mass the higher the overall entropy. And so the molar mass of ammonia is 17.4 g per mole, whereas the molar mass for benzene C six H six is 78.12 g per mole. Therefore we can expect this Benzie to have the higher overall entropy and therefore would be our answer here. I hope this helped ahead until next time.