Identify the intensive quantity from the following.

Which of the following transformations is endothermic in nature?

Which of the following expressions is true for an ideal gas?

One mole of a gas occupying $3 \ L$ volume is expanded against a constant external pressure of $1 \ bar$ to a volume of $15 \ L$. Calculate the work done by the system.

Work done during the process when $1 \, mol$ of gas is allowed to expand freely into vacuum is:-

What is the work done in $cal$ during the reversible isothermal expansion of $1 \, mol$ of an ideal gas at $300 \, K$ from $10 \, atm$ to $1 \, atm$?