Enthalpy $(H)$ is equal to

Any series of operations so carried out that at the end,the system is back to its initial state is called:

Consider the expansion given in problem $6.2$,for $1 \, mol$ of an ideal gas conducted reversibly.

The internal energy of a substance $U$ is related to temperature $T$ in which of the following ways?

Two mole of an ideal gas is expanded isothermally and reversibly from $1 \ L$ to $10 \ L$ at $300 \ K$. The enthalpy change (in $kJ$) for the process is .....$kJ$

For which of the following reactions is $\Delta H$ approximately equal to $\Delta E$?