What is calorimetry?

Which of the following is $NOT$ an intensive property?

Choose the reaction in which $\Delta H$ is not equal to $\Delta U$.

$X$ is an extensive property and $x$ is an intensive property of a thermodynamic system. Which of the following statement$(s)$ is (are) correct?

An ideal gas expands in volume from $1 \times 10^{-3} \ m^3$ to $1 \times 10^{-2} \ m^3$ at $300 \ K$ against a constant pressure of $1 \times 10^5 \ N \ m^{-2}$. The work done is

Which of the following is a path function?