Reversible and Irreversible Processes

Which of the following is not a characteristic of an irreversible process.

Which of the following processes described below is irreversible

The cause of irreversibility of a natural process is:

The cause of irreversibility of a natural process is:

Explain irreversible process with one example.

Explain reversible process.

For a reversible process, necessary condition is

Mention the causes for irreversibility of a process.

Is the transfer of heat from one body to another, a reversible process or an irreversible process?

Define an irreversible process.

Define reversible process.

Which statement is incorrect?