$A$ measure of the degree of disorder of a system is known as

"Heat cannot flow by itself from a body at a lower temperature to a body at a higher temperature". This statement corresponds to:

One mole of an ideal gas at $300 \ K$ in thermal contact with surroundings expands isothermally from $1.0 \ L$ to $2.0 \ L$ against a constant external pressure of $3.0 \ atm$. In this process,the change in entropy of the surroundings $(\Delta S_{\text{surr}})$ in $J \ K^{-1}$ is $(1 \ L \ atm = 101.3 \ J)$.

Which of the following statements is correct for any thermodynamic system?

When you make ice cubes,the entropy of water

$N_{2}$ gas is heated from $300\, K$ to $600\, K$ through an isobaric process. Find the change in entropy of the gas. $(n = 1\, \text{mole})$ (in $J/K$)