Can the absolute value of internal energy be determined ? Why of why not ?

Can the absolute value of internal energy be determined ? Why or why not ?

What is the origin of internal energy of a system? Why cannot absolute value of internal energy be determined?

Why the absolute value of enthalpy cannot be determined ?

Which of the following statement is incorrect about internal energy? a) The absolute value of internal energy cannot be determined b) The internal energy of one mole of a substance is same at any temperature or pressure c) The measurement of heat change during a reaction by bomb calorimeter is equal to the internal energy change d) Internal energy is an extensive property

Change in internal energy is determined by

Can we measure the absolute value of internal enegry?

Can we measure the absolute value of internal enegry?

Can we measure the absolute value of internal enegry?

Assertion(A ): Absolute values of internal energy cannot be determined Reason (R ): It is impossible to determine the exact values of constituent energies of the substances