A certain mass of a gas occupies 2 litres at 27 °C and 100 pascal. Find the temperature when volume and pressure
become half of their initial values.
pls give with solution pls pls

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Why does lightning travel from clouds to the ground?

4. now look at the green lines you created by connecting the three boiling point data points and the three melting point data points. for each of these lines, describe any trends you see. 5. locate the elements on your periodic table that you circled in green on your graph. what term or description would you use to identify these elements with respect to the periodic table? 7. using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers.