The number of extensive properties in the following list is: enthalpy,density,volume,internal energy,temperature.

Which of the following is always negative for an exothermic reaction?

The number of extensive and intensive properties in the list given below is respectively: density,enthalpy,mass,temperature,volume,pressure.

For a substance,the molar heat capacity at constant $P$ is given by:

Two moles of an ideal gas are expanded isothermally from $15 \ dm^3$ to $20 \ dm^3$. If the amount of work done is $-6 \ dm^3 \ bar$,find the external pressure needed to obtain this work.

Two moles of an ideal gas is expanded isothermally and reversibly at $300 \ K$ from $1 \ L$ to $10 \ L$. The enthalpy change in $kJ$ is