A piston-cylinder, initially containing 200 mol of helium at 300 K and 0.1 m3 , is expanded to 5 times its original volume by applying 1.5 MJ of heat from a hot reservoir at 400 K. Assuming helium is a van der Waals fluid and with C ∗ P = 29 J/(mol·K), determine the maximum work that can be produced from this process. What is the final temperature of the gas?

All cells are made of four types of acids, lipids, proteins, and carbohydrates.

For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate

Asolid that forms and separates from a liquid mixture is called