When copper(II) sulfate pentahydrate (CuSO4·5 H2O) is heated, it decomposes to the dehydrated form. The waters of hydration are released from the solid crystal and form water vapor.  The hydrated form is medium blue, and the dehydrated solid is light blue.   The balanced equation is:                                Heat CuSO4·5 H2O(s)  -------> CuSO4(s) + 5 H2O(g)                               If 2.42 g CuSO4·5 H2O is decomposed to CuSO4, predict the mass of the remaining light blue solid in grams.

Q: When methanol, CH, OH, is burned in the presence of oxygen gas, O2, a large amount of heat energy is…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: What mass of propane, C3H8, must be burned in order to produce 76,000 kJ of energy? Is this reaction…

A:

Q: Given the following thermochemical equation for the synthesis of aluminum oxide from aluminum and…

A:

Q: Propane burns in oxygen to form water and carbon dioxide according to the following balanced…

A: The enthalpy of the reaction is considered as the state function that is it depends only on the…

Q: .32 The material typically used to heat metal radiators is water. If a boiler generates water at…

A:

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: When hot metal is poured into the calorimeter, the metal releases heat, and the water and…

Q: Sulfur dioxide gas reacts with oxygen to form sulfur trioxide in an exothermic reaction according to…

A: Given mass of SO2 = 58 g

Q: 6.111 In a calorimetric experiment, 6.48 g of lithium hy- droxide, LİOH, was dissolved in water. The…

A:

Q: When methanol, CH,OH, is burned in the presence of oxygen gas, 0,, a large amount of heat energy is…

A:

Q: Titanium reacts with iodine to form titanium(III) oxide as shown below. Calculated the heat emitted…

A: Given data, Mass of titanium=29.7gMass of iodine=198g∆H for the reaction=-839kJ

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A:

Q: Consider the equation for the combustion of acetone(C3H6O), the main ingredient in nail polish…

A: Combustion is burning of fuels in the presence of oxygen. It is a highly exothermic reaction and…

Q: How much heat is evolved when 453.5 g of ammonia (NH3) is produced according to the following…

A: Given Reaction is - N2 (g) + 3H2 (g) → 2NH3 (g)                  ΔH= -91.8 kJ

Q: When carbon disulfide,CS2, forms from its elements, heat is absorbed. How much heat would be…

A: Enthalpy of formation of carbon disulphide = 89.3 kJ The formation of carbon disulphide is for 1…

Q: When methanol, CH3OH, is burned in the presence of oxygen gas, O2, a large amount of heat energy is…

A: Given: Heat energy produced due combustion of methanol = -515 KJ ΔH = -764 KJ/mol Molar mass of…

Q: If 400 J of heat is given to a system and the system does 200J of work, what is the change in…

A: Answer:- This question is answered by using the simple concept of calculation of change in energy…

Q: Substance Specific Heat Capacity (in J/g x °C) Iron 0.449 Aluminum 0.897 Lead 0.129 4. Using the…

A: Given : Initial temperature of substance = 20 oC Final temperature of substance = 30 oC And equal…

Q: Magnesium metal reacts with HCl according to the following balanced equation: Mg(s)  +      2 HCl…

A:

Q: Propane is a common fuel used in portable stoves. If a gas canister contains 0.283 dm3 of propane,…

A: Given, C3H8 (g) + 5 O2 (g) ➝ 3 CO2 (g) + 4 H2O (g)              ∆H = -2221KJ/mol Here, (-) sign…

Q: The reaction between nitrogen and oxygen gases requires the absorption of 43 kJ of energy per mole…

A: The balanced reaction taking place is given as, => N2 (g) + O2 (g) -----> 2 NO (g)…

Q: (d) Consider the complete combustion of Benzene (CeH6). If the density of benzene is 0.88 g/mL, what…

A: Given reaction is : 2C6H6 (l) + 15 O2 (g) ----------> 12CO2 (g) + 6H2O (g) , ΔH0rxn = -6278 KJ…

Q: When methanol, CH,OH, is burned in the presence oxygen gas, 0, a large amount of heat energy is…

A: A chemical reaction is symbolic representation of the conversion of substances to new substances. In…

Q: Magnesium burns in air to produce a bright light and is often used in fireworks displays. The…

A:

Q: Consider the following reaction: 2C6H6() + 15 O2(g)- 12 CO2(g) + 6 H20() AH = -5.869 x 103 kJ An…

A: Each reaction takes place account to their stoichiometric radio and account to those things the heat…

Q: Sulfur trioxide can be removed from the exhaust gases of power plants by reaction with lime…

A: Balanced chemical equation: CaO(s) + SO3(g) ------> CaSO4 (s) ΔH ° = –886 kJ  This shows that…

Q: When methanol, CH3OH, is burned in the presence of oxygen gas, O₂, a large amount of heat energy is…

A:

Q: When methanol, CH3OH,CH3OH, is burned in the presence of oxygen gas, O2,O2, a large amount of heat…

A: A numerical problem based on the heat energy released, which is to be accomplished.

Q: When methanol, CH,OH, is burned in the presence of oxygen gas, O,, a large amount of heat energy is…

A: Enthalpy of reaction = - 764 kJ/mol Energy required = 729 kJ We need to find mass of methanol to be…

Q: Once CS2 (carbon disulfide) is formed from its elements, heat is then absorbed.  How much heat would…

A: Given that When 1 mole of CS2 is formed from its constituents elements, heat energy equal to 89.3…

Q: 2. Propane is the fuel used in outdoor gas grills. The thermochemical eqn for the combustion of…

A: Combustion :- The process of burning a substance in excess of air or oxygen is known as combustion…

Q: Calcium phosphide is used in fireworks, torpedoes, self-igniting naval pyrotechnic flares, and…

A:

Q: When methanol, CH3OH,CH3OH, is burned in the presence of oxygen gas, O2,O2, a large amount of heat…

A: The combustion of methanol in the presence of oxygen can be expressed by the following chemical…

Q: Given the equation 2SO2(g) + O2 (g) = 2SO3(g), H° = –197.8 kJ per mole, find the quantity of heat…

A:

Q: When carbon disulfide, CS2, forms from its elements, heat is absorbed.  How much heat would be…

A: Thermodynamics is the branch of chemistry that mainly deals with the heat transfer between system…

Q: 4) The specific heat of copper is 0.385 J/g °C. Using the heat equation, Heat = mass x temperature…

A:

Q: 61. Consider the thermochemical equation for the combustion of acetone (C3H,O), the main ingredient…

A:

Q: 112. The thermochemical equation for the combustion of methanol is CH3OH (g) + 3/2 O2(g) → CO2(g)…

A: The chemical reaction of the combustion of methanol is CH3OH (g) + 3/2 O2(g) → CO2(g) + 2 H2O(l) ΔH…

Q: The highly exothermic thermite reaction, in which aluminum reduces iron(ll) oxide to elemental iron,…

A: Heat released and absorbed in a chemical reaction is function of the numbe of moles of reactants…

Q: When methanol, CH3OH, is burned in the presence of oxygen gas, O2, a large amount of heat energy is…

A:

Q: NH3(g) + H2O(g) 02(g) --> _- NO(g) + -- Based on the enthalpies of formation, how much energy, in…

A: Given unbalanced equation is :  NH3 (g) + O2 (g) ----------> NO (g) + H2O (g)  Given mass of NH3…

Q: When methanol, CH3OH, is burned in the presence of oxygen gas, O2, a large amount of heat energy is…

A:

Q: Consider the following equation for the combustion of acetone (C3H6O), the main ingredient in nail…

A: Given, Equation of Combustion of acetone (C3H6O), C3H6O (l) + 4O2(g)  ➝ 3CO2(g) + 3H2O(g) ∆Hrxn =…

Q: Consider the thermochemical equation for the combustion of acetone (C3H6O), the main ingredient in…

A:

Q: Constants | Periodic Table Chemical energy is released or absorbed from reactions in various forms.…

A: In the given question we have to calculate the heat absorbed when 3.50 mol of A reacts with B. The…

Q: 1. Ammonia undergoes combustion to yield nitric oxide and water by the following reaction equation:…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: When methanol, CH,OH, is burned in the presence of oxygen gas, O,, a large amount of heat energy is…

A: Given information:                      CH3OH(g) + 32O2(g)  → CO2 (g)  + 2H2O(l)        ∆H = -764 kJ

Q: . When carbon disulfide,CS2, forms from its elements, heat is absorbed. How much heat would be…

A: Given,The reaction is →C+2S →CS2 , ∆H = +89.3 kJthis shows that when one mole of CS2 is produced ,…

Q: When octane (C8H18, density = 0.699 g/mL) undergoes complete combustion, it provides energy…

A: Interpretation- To determine the amount of heat (in KJ)  produced by the amount of octane needed to…

Q: When methanol, CH3OH,CH3OH, is burned in the presence of oxygen gas, O2,O2, a large amount of heat…

A: The combustion of methanol is given below.

Q: Consider the reaction: 2C4H10g) + 1302(g) 8CO28) + 10H20(), AH = -5756 kJ When a 0.571 mol of C4H10…

A:

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.