Question

Section Number: Pre-Workshop Themochemistry Worksheet 1. (1pt) Define the following terms. a. Energy- the ability to do work / potential & Kochet cre b. Work- movement in the direction of force (d) c. Enthalpy- d. First Law of Thermodynamics- 2. (1pt) Calculate AE when q = 34 J, W = -22 J AE: 345+224 = 100 3. (1pt) In the calorimetry equation, what symbol represents change in heat energy for a specific mass. 4. (1pt) For an endothermic process, q is reported with a sign, and for an exothermic process, is reported with a sign. 5. (1pt) Calculate the heat necessary to raise the temperature of 40.0 g of aluminum from - 20.0°C to 32.3°C. Specific heat of aluminum is 0.215-cal/g°C.

Answer 1

a) Energy:- The maximum amount of charge that can be made to a system is called energy. Enoogy is the capacity to do work. 62 work; It is defined as the energy transferred from one system to another without any transfer of entaopy, I c) Enthalpy: Enthalpy is the sum of internal enogy and the product of pressure and volume of a themodynamic system. di first low or thermodynamics. It I defined as the energy can be converted from ome boom to another with the interaction oli heat, work and internal energy. 2) Cuiven data ;q=345; W=-225, DE = qtw = 34-22 LAE = 120