Heating curve calculation 144.29 g of pentane vapor at 117 °c is cooled to completely solid at -84 °c. heating curve data for pentane boiling point (°c) melting point (°c) ahp (kj/mol) vap ahfus (kj/mol) specific heat, gas (j/mol k) specific heat, liquid (j/mol k) 117 -84 45.3 9.3 120 168 how much heat is released from the system as the pentane cools?
a. 157 kj
b. 177 kj
c. 67600 kj
d. 67.5 kj
