What is the final equilibrium temperature when 12 g of milk at 7◦c is added to 175 g of coffee at 69◦c? assume the specific heats of milk and coffee are the same as that of water, and neglect the specific heat of the container. answer in units of ◦c.

A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c