Isobaric Reversible Process

The video tutorial explains how to calculate work, enthalpy, and internal energy in isobaric processes, where pressure remains constant. It starts with calculating work using the integral of pressure and volume change. The tutorial then covers finding enthalpy change using heat capacity at constant pressure and explains that in isobaric processes, enthalpy change equals heat at constant pressure. Finally, it discusses calculating internal energy using enthalpy and work, highlighting multiple methods to achieve this. The video concludes with a preview of more complex examples involving isotherm graphs.

What does the term 'isobaric' imply in thermodynamics?

• Constant internal energy

• Constant volume

• Constant temperature

• Constant pressure

How is work calculated in an isobaric process?

• Positive integral of P dV

• Negative integral of P dV

• Negative integral of V dP

• Positive integral of V dP

In an isobaric process, what is the relationship between enthalpy change and heat at constant pressure?

• They are unrelated

• Enthalpy change is always greater

• Heat at constant pressure is always greater

• They are equal

What is the partial derivative of enthalpy with respect to temperature at constant pressure equal to?

• Internal energy

• Work done

• Heat capacity at constant pressure

• Heat capacity at constant volume

Which formula can be used to find internal energy change (ΔU) in an isobaric process?

• ΔU = ΔH - NrΔT

• ΔU = Q + W

• ΔU = ΔH + NrΔT

• ΔU = Q - W

What is the relationship between ΔH and ΔU in an isobaric process?

• ΔH = ΔU + NrΔT

• ΔH = ΔU - NrΔT

• ΔH = ΔU

• ΔH = ΔU + Q

In an isobaric process, which of the following is true about the pressure?

• Pressure increases

• Pressure decreases

• Pressure remains constant

• Pressure fluctuates