When a system expands under adiabatic conditions,what happens to its internal energy?

$q$ and $w$ are both ....... functions and $q + w$ is a ....... function.

If the internal energy of an ideal gas decreases by the same amount of the work done by the system,the process is

Which of the following is the correct mathematical expression for the first law of thermodynamics?

$A$ mixture of gas expands from $0.03\, m^3$ to $0.06\, m^3$ at a constant pressure of $1\, MPa$ and absorbs $84\, kJ$ of heat during the process. The change in internal energy of the mixture is $.....\, kJ$.

If $\Delta H$ is the change in enthalpy and $\Delta E$ is the change in internal energy accompanying a gaseous reaction,which of the following is true?