Two isomers of pentane, A and B, are combusted completely. Isomer A releases 3310 kJ mol$^{-1}$ and isomer B releases 3325 kJ mol$^{-1}$. Which isomer is more highly branched and what is the percentage difference in the heat released between the two isomers (to two decimal places)?

Question

Accepted Answer

Isomer A is more highly branched; percentage difference $\approx 0.45\%$

Igcse Model Questions Vol1 2020 Chemistry Question 17

Two isomers of pentane, A and B, are combusted completely. Isomer A releases 3310 kJ mol\(^{-1}\) and isomer B releases 3325 kJ mol\(^{-1}\). Which isomer is more highly branched and what is the percentage difference in the heat released between the two isomers (to two decimal places)?

Answer Options

About This Question

Master the Exam!

Igcse Model Questions Vol1 2020 Chemistry Question 17

Two isomers of pentane, A and B, are combusted completely. Isomer A releases 3310 kJ mol\(^{-1}\) and isomer B releases 3325 kJ mol\(^{-1}\). Which isomer is more highly branched and what is the percentage difference in the heat released between the two isomers (to two decimal places)?

Answer Options

About This Question

Master the Exam!

Two isomers of pentane, A and B, are combusted completely. Isomer A releases 3310 kJ mol\(^{-1}\) and isomer B releases 3325 kJ mol\(^{-1}\). Which isomer is more highly branched and what is the percentage difference in the heat released between the two isomers (to two decimal places)?