question_answer

                                                 Which one of the following is the correct expression for change in the internal energy for a small temperature change \[\Delta T\] for an ideal gas?

A) \[\Delta u={{c}_{v}}\times \Delta T\]     

B) \[\Delta u={{c}_{p}}\times \Delta T\]

C) \[\Delta u=\frac{{{c}_{p}}}{{{c}_{v}}}\times \Delta T\]

D) \[\Delta u=\left( {{c}_{p}}-{{c}_{v}} \right)\Delta T\]