A calorimeter holds 125 g water at 31.0°C. A sample of hot copper is added to the water. The final temperature of the water and copper is 39.0°C. What is the change in enthalpy
associated with the change in the water's temperature? The specific heat capacity of
water is 4.19 J/gºC. Which substance had a positive q value?

1. explain hydrogen peroxide, h 2 o 2 properties and decomposition reaction. 2. describe how each of the following natural cycles plays a part in earth’s climate system. (a) the water cycle (b) the carbon cycle

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.

Give more examples of this type of heat transfer: