The graph shows the heating curve for 1 kg of water. Heat is applied to the water at a steady rate throughout the process. The specific heat of water is 4180 J/(kg·K). How much energy is added from Point C to Point E? The specific heat of water vapor is 2020 J/(kg·K) and water’s heat of vaporization is 2.26×106 J/kg.

1 x 10^5 J

1 x 10^6 J

2 x 10^5 J

2 x 10^6 J

3 x 10^5 J

3 x 10^6 J

4 x 10^5 J

4 x 10^6 J

5 x 10^5 J

5 x 10^6 J

The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.

Which is an example of an exothermic process?