If a particular process is endothermic, the reverse process must be a (an):     exothermic process.     chemical change.     endothermic process.     isothermal process.     none of the above

Q: A change in a system occurs such that 92.1 J of heat flows in to the system and 31.8 J of work is…

A: From the first law of thermodynamics, ∆U = Q - W where, ∆U = change in internal energy  Q = heat…

Q: One hundred grams of a piece of metal was put in 222.2 g container and the water are at 20 deg C. Cp…

A: Given,  Mass of metal= 100 g Mass of water = 222.2 g  Cp(water) = 4.184 J/g-K Cp(metal) = 0.4444 J/K…

Q: A student is using calorimetry to determine the heat of solution for various salts. When the student…

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Q: Piece of metal with a mass of 48.342 g at an initial temp of 108 C is placed into 50 g of water…

A: Given, mass of metal =48.342 graminitial temperature of metal =108 °Cmass of water =50 graminitial…

Q: A certain process results in a gas system releasing 68.3 kJ of energy. During the process, 15.8 kcal…

A: Given , Energy released = 68.3 kJ Heat absorbed = 15.8 kcal External pressure = 1.00 atm Initial…

Q: 4) What is the heat change when 18.6 g of Hydrogen reacts with excess O2 according to the following…

A: If a reaction releases more energy than it absorbs, the reaction is exothermic and enthalpy will be…

Q: Convert 17.3 JJ to Calories 132 kJkJ to Calories 56.2 CalCal to joules.

A: In this question, the energy values are provided and they have to be converted into mentioned units:…

Q: 3. The density of water at 25 °C is 0.997 g/mL and the density of vegetable oil at this temperature…

A: Endothermic process: it is a thermodynamic process where the enthalpy (H) of the system icreases.…

Q: The change in enthalpy when one mole of a compound forms from its constituent elements in their…

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Q: A_ AH corresponds to an, process. O positive, exothermic zero, exothermic positive, endothermic O…

A: Change in enthalpy of the process which is also called heat of process is denoted by ∆H. For…

Q: Aluminium powder is reacted with iron (II) oxide in a crucible in the thermite reaction, producing…

A: A thermodynamic system is a body of matter separated from its surroundings by a defined wall. On the…

Q: Which statement/statements are true about thẻ system? a. Heat absorbed by the system (endothermic…

A: System: It is the part or body which contains walls that surround the matter, substances, or…

Q: A reaction known to be endothermic was performed in a beaker. Which observation would best support…

A: Given, A reaction known to be endothermic was performed in a beaker the best observation for this…

Q: Discuss the definition of the terms exothermic and endothermic. Give an example of an thermochemical…

A: The exothermic reaction is the reaction that releases heat. The heat of the reactant is higher than…

Q: Which of the following is an endothermic process? O freezing of alcohol decomposition oh hydrogen…

A: We need to determine the endothermic process among these.

Q: 1. Determine the “disorder of the system” Cl2(g) + 3F2 (g) → 2ClF3 (g)  a) positive b) negative c)…

A: Entropy: The measure of the disorder of a system. entropy increases with increasing the disorder of…

Q: Choose all of the processes from below which describe changes which are independent of the path by…

A: Concept - There are two types of functions - 1. Path functions, these are the properties or…

Q: Which of the following is an endothermic process? a) water freezing b) propane burning in air Oc)…

A: Exothermic reactions are chemical reactions that release energy in the form of heat, light, or…

Q: The specific heat of aluminum is 0.214 cal/g·oC. Determine the energy, in calories, necessary to…

A: The specific heat of aluminium is = 0.214 cal/(g·oC) The mass of aluminium is = 55.5 g The increase…

Q: Two aqueous solutions are both at room temperature and are then mixed in a coffee cup calorimeter.…

A: Endothermic reactions : The reactions in which heat is absorbed are called exothermic reactions.…

Q: A change in a system occurs such that 76.2 J of heat flows in to the system and 66.5 J of work is…

A: Introduction: From the 1st law thermodynamics,  the change in internal energy, ∆U = q + w (q =…

Q: Which of the following processes is endothermic?     a hot cup of soup (system) cools on a…

A: Answer:- this question is answered by using the simple concept of endothermic reaction in which heat…

Q: Which of the following processes always results in an increase in the energy of a system? O The…

A: Which of the following processes always results in an increases in the energy of a system has to be…

Q: Which of the following suggests that the process of dissolving a solid sample in a constant-pressure…

A: Given: To explain how can we know that the dissolving of a solid sample in a constant-pressure…

Q: Exothermic Endothermic Heat Heat Heat Heat Which statement is correct? O When an endothermic process…

A: Endothermic process is a process which involves heat absorption from the surroundings, so as to…

Q: Simple Calorimetry. A piece of solid aluminum at 15.0°C is immersed in 12.3 g of nitrogen gas which…

A: Heat lost by hotter N2 gas is equal to heat absorbed by the cooler solid aluminium.

Q: A 138.9 g sample of an unknown metal at a temperature of 99.1 °C is added to 44.72 g of water at a…

A: Q = mC∆T

Q: Which of the following statements is CORRECT? a. Heat exchange is positive for an exothermic…

A: In exothermic reaction, product is more stable than reactant where in endothermic reaction, reactant…