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 g, where =1.0 × 10-24 J. In other words, each NO₂ group could have of rotational kinetic energy, or 28, or 3s, 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 68. Then, some heat is removed from the system, and the total rotational kinetic energy falls to 64c. Calculate the change in entropy. Round your answer to 3 significant digits, and be sure it has the correct unit symbol. Two rotating NO₂ groups bonded to a surface.

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So you escaped the fate of wrapping hamburgers. The next step is to continue proving that you know dimensional analysis (it’s never too late for the hamburger people to come get you!) The great thing about dimensional analysis is that sometimes you can solve problems without equations. Here is such a case: a. All matter has a property called a specific heat capacity. For silver, this specific heat capacity is 0.24 J/°C · g. How much energy (in Joules) would be required to heat 120.0 g of silver (Ag) so that its temperature changes by 32°C? Use dimensional analysis, not an equation!               Dimensional Analysis Practice Problems Page 6 of 6 b. Based on how you set up the problem above, what would be the equation? Fill in the rest of this expression to form your own equation (that you figured out by using dimensional analysis above.) You will use the terms “mass” “specific heat” and “temperature” and some mathematical operation signs). This answer is an equation, not…

In model 1 of the activity 'Vapor Pressure vs. Temperature and Heating Curves and Vapor Pressure, what does the slope of line segments 1 and 3 of the heating curve represent? O the enthalpy of vaporization or enthalpy of fusion different masses are used when recording the temperature change different masses are used when recording the temperature change the specific heat capacity of the state being heated