Nolan and hunter are studying heat flow, so they design the following apparatus. the apparatus consists of two identical glass cylinders connected by a glass tube. during their experiment, nolan and hunter simultaneously pour hot water in the tank on the left and cold water in the tank on the right. then, they seal the tops of the cylinders and allow the water in the tanks to intermingle through the glass tube. to determine if heat is transferred, nolan wants to place his hands in each tank of water at the beginning and end of the experiment. hunter wants to use a thermometer to measure the temperature in each tank at the beginning and end of the experiment. how do nolan and hunter's proposed methods compare?

Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.

How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar

In apex! a liquid heated beyond a certain temperature becomes