Determine if the follawing are examples of exothermic ar endothermic pracesses.

Question

Determine if the follawing are examples of exothermic ar endothermic pracesses. Which of the following is an example of an endothermic process (a process that absorbs or requires heat)? water condenses on a cold glass in the summer heat. Freezing water into ice. Neutralization of acid by a base heats up. Subit Anvewer Incor Tries 2/5 Previous Tries Problem 2 One mole of an ideal gas is expanded from a volume of 6.37 L to a volume of 8.77 L against a constant external pressure of 1.98 atm What is the work, w, of the system? T 315 K; 1 Latm-101.3 J) Subrit Anesar Tries 0/s Problem 3 Agas gives off 37.8 ? of heat, and then 25.0 Joof work is done on the gas. Calculate the change in internal energy, ?E, or the gas. ubrit AnsweTries 0/5 Problem 4 A 74.2 g block of an unknown metal at 57.70 °C is placed in a coffee-cup calorimeter containing 50.0 g of water at 21.63 °C. After equilibration, the temperature of the water is 28.97 °C. The specific heat capacity of water is 4.18 J/g-oC. What is the specific heat capacity of the unknown metal? cepacity of Subrit Areowe Tries 0/5

Explanation / Answer

Ans 1

Endothermic process - when the heat is absorbed and the temperature decreases as the process proceeds is called Endothermic process.

Exothermic process - when the heat is released with the process and the temperature increases as the process proceeds is called Exothermic process.

Water condenses and release the heat therefore it is exothermic process

Water releases the heat and forms the ice therefore it is exothermic process

Acid neutralization reaction releases the heat therefore it is exothermic process.

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