Question

16 One mole of an ideal gas is heated at a constant pressure of 101300 N
$m^{2}$, from 273.2 K to 373 K. Calculate the work involved R = 8.314
J/mol/K).
8.314 J/mol
83.14 J/mol
831.4 J/mol
8314 J/mol



17 Which of these followings would lead to an increase in the internal
energy of a system?
Work done on the system
Work done by the system
Loss of heat from the system
Adiabatic expansion of the system



18 Which of the following statements about enthalpy is incorrect?
Enthalpy and internal energy of a system are always identical
enthalpy is a state function
$\Delta H$ is the enthalpy change at constant pressure
Reactions which absorb heat have a positive DH