Given a biological system at 1 atm with = 16 kJ/g,what is the internal energy of the system?
A) 15 kJ/g
B) 16 kJ/g
C) 14 kJ/g
D) Not enough information is given to calculate the answer.

Question

Given a biological system at 1 atm with  = 16 kJ/g,what is the internal energy of the system?
A) 15 kJ/g 
B) 16 kJ/g 
C) 14 kJ/g 
D) Not enough information is given to calculate the answer.

Quizplus · Accepted Answer

The internal energy of a system is equal to its enthalpy minus its pressure multiplied by its volume (U = H - PV). However, since the pressure and volume are not given, we cannot use this equation to calculate the internal energy. Instead, we can use the fact that in this specific system, the enthalpy per unit mass is given as 16 kJ/g. Therefore, the internal energy per unit mass must also be 16 kJ/g, since enthalpy is equal to internal energy plus pressure times volume divided by mass. Thus, the correct answer is B, 16 kJ/g.

Given a Biological System at 1 Atm with =