State second law of thermodynamics.

Q: How to apply the laws of thermodynamics to chemical reactions ?

A: In any chemical reaction, heat of reaction can be calculated by applying . Hess's law based on 1st…

Q: Measurements show that the enthalpy of a mixture of gaseous reactants increases by 151. kJ during a…

A: The enthalpy change of the given reaction is = +151. kJThe work done on the gas mixture is =123.…

Q: The father of thermodynamics is: O Sadi Carnot O John Dalton O Linus Pauling O John Adams

A: Nicolas Leonard Sadi Carnot is known as the father of thermodynamics.

Q: Which change is more likely to happen spontaneously: (a) Endothermic Change or (b) Exothermic…

A: Given: endothermic and exothermic change. To find: the change which is more likely to happen…

Q: Under what conditions will enthalpy tend to dominate the equilibrium state of a chemical system?…

A: The dominance of enthalpy or entropy in determining the equilibrium state of a chemical system…

Q: Which one of the following conditions would always result in an increase in the internal energy of a…

A: Internal energy is defined as the energy associated with the random, disordered motion of molecules.…

Q: Which of the following parameters was held constant in the Styrofoam calorimetry experiment?…

A: Given: Styrofoam calorimetry experiment.

Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 151. kJ during a…

A: Enthalpy of a mixture of gaseous reactants are decreased by 151 KJ and - 92 KJ of work is done…

Q: The student transferred 50.0 mL 1.00 M HCl into a coffee-cup calorimeter, which had a temperature of…

A: In this question we have to calculate the heat of Reaction by the given as shown above in the…

Q: . A piece of an iron metal of unknown mass is heated to 325.9 o C and then placed in a styrofoam…

A: Given, Initial temperature of iron = 325.9 °C Volume of water = 225.2 mL Initial temperature of…

Q: Measurements show that the enthalpy of a mixture of gaseous reactants increases by 238. kJ during a…

A: The objective of the question is to calculate the change in energy of the gas mixture during the…

Q: Enthalpy changes depend on the temperature and pressure under which a process occurs. However, the…

A: Standard state :-  Standard state for elements or compounds is the reference state at which…

Q: The standard enthalpy of formation of H2O20 is -187.8 kJ-mol-1 and of H2Om is - 285.8 kJ-mol-1.…

A: The reaction given is, => 2 H2O2 (l) → 2 H2O (l) + O2 (g) Given: ΔHof{H2O (l)} = -285.8 KJ/mol.…

Q: Measurements show that the enthalpy of a mixture of gaseous reactants increases by 140. kJ during a…

A: Enthalpy of a mixture of gaseous reactants increases by 140. KJ  It means enthalpy change (∆H) = +…

Q: chemical reaction is run in which 465 Joules of heat are generated and the internal energy changes…

A: ★ Q + W = ΔU 465 J + W = – 27 J  W = – 27 J – 465 J  W = – 492 J.

Q: The study of thermodynamics involves work. O True O False

A: The study of thermodynamics involves work. The above statement that is true or false has to be given…