Which of the following statements is correct for closed system?

Which of the following statements is correct for closed system?

a. In closed system only mass transfer can takes place and no energy transfer takes place.
b. In closed system only energy transfer can takes place and no mass transfer takes place.
c. In closed system both the mass and energy transfer can take place.
d. In closed system neither energy nor mass transfer can take place.

Correct Answer : b. In closed system only energy transfer can takes place and no mass transfer takes place.

Explanation :

Only energy transfer can takes place in closed system. When both the energy as well as the mass transfer take place in system then it is called open system. When both the energy and the mass transfer are restricted then the system is called isolated system.