How much heat is evolved when 453.5 g of ammonia (NH3) is produced according to the following reaction (N=14, H=1): N2(g) + 3H2(g) → 2NH3(g) ΔH= -91.8 kJ

Q: How much heat evolves from burning 16.4 g of sulfur, Sg, in air? g S8(s) + 8 O2(g) → 8 SO2(g) AH°r=…

A:

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

A:

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: How much heat is produced by the complete combustion of 264 gg of CH4CH4?

A: Given:CH4g+2O2g→CO2g+2 H2Og∆Hrxn°=-802.3 kJ

Q: The reaction 3H2(g) + N2(g) → 2NH3(g) has an enthalpy of reaction of -92.6 kJ/mol. If 2 g of…

A: According to the given balanced chemical equation, one mole of nitrogen reacts to produce 92.6 kJ of…

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: From the given chemical equation, solve for the heat evolved (in kJ) when 78.96 g of carbon dioxide…

A: Number of mols = weight/ molecular weight

Q: How much heat is released when 4.50 g of methane gas is burned in a constant-pressure system?

A: Given: Mass of methane = 4.50g To find: The amount of heat released

Q: How much heat will be absorbed when 38.2 g of bromine reacts with excess hydrogen according  to the…

A: Given :-  H2 + Br2  + 72.80 kJ → 2HBr  To calculate :-  Amount of heat absorbed when 38.2 g of…

Q: How many moles of H₂ are required to produce -2051 kJ of heat in the following reaction? N₂ (g) + 3…

A: Heat of reaction is difference of energy of product  and energy of Reactant. If heat of reaction is…

Q: 2. In order to produce 972 kJ of heat, how many grams of H2 must react? 2 H2 (g) + 02 (g) → 2 H20…

A:

Q: The combustion of butane, C4H10, is given as: 2C4H10(g) + 1302(g) 8CO2(g) + 10H,O(I), AH° = -5314…

A: Given values -> 2C4H10+13O2-> 8CO2+10H2O ∆H°= -5314kj

Q: 3) The addition of CO2 to a solution containing calcium ions can lead to the formation of insoluble…

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: HCI gas reacts with oxygen according to the following thermochemical equation :…

A: The reaction equation is given as- 4 HCl (g)+O2 (g)→ 2 Cl2 (g) + 2 H2O (g)…

Q: When 1.23g C6H6(l) are burned, 51.5KJ of heat are released.  Calculate the enthalpy for this…

A: Heat of formation of the compound can be calculated from the reaction and enthalpy of the reaction .…

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: Suppose that 0.250 mol of methane, CH4(g), is reacted with 0.400 mol of fluorine, F2(g), forming CF…

A: 0.250 mol  of methane is reacted with 0.400 mol of fluorine.

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: From the given chemical equation, solve for the heat evolved (in k]) when 78.96 g of carbon dioxide…

A:

Q: Consider the following reaction: 2 Al (s) + Fe2O3 (s) → 2 Fe (s) + Al2O3 (s)    ΔH = -850 kJ What…

A: Given the chemical reaction as follows,2 Al (s) + Fe2O3 (s) → 2 Fe (s) + Al2O3 (s)   ;  ΔH = -850…

Q: The reaction for the combustion of propane is…

A: In the given question, a reaction is given in which we have to determine the amount of heat released…

Q: A piece of a metal of a mass 4.68g absorbs 256J of heat when its temperature increases by 182C. What…

A:

Q: Consider the following reaction: N2(g)+O2(g)⟶2NO(g)                                ΔH∘=182.6kJ How…

A:

Q: Calculate the heat exchanged when 32.0 g oxygen reacts with 16.0 g methane:  CH4(g) + 3/2 O2(g) →…

A: Ans -600kj

Q: Consider the balanced chemical equation: 2Al(s) + Fe2O3(s) -> 2Fe(s) + Al2O3(s) heat of reaction =…

A:

Q: For the combustion of methane(CH4)   CH4 (g)  + 2 O2 (g)  -->  CO2 (g) + 2H2O (g)       Δ H = -882…

A: In a thermochemical equation, the term, ∆H , represents the change in heat energy per mol reaction.…

Q: What is the AE of a system if 184 kJ of work is done on the system and it loses 267 kJ of heat?

A: We use the first law of thermodynamic for calculating the change in internal energy. This low state…

Q: How many moles of H2 are required to produce -2151 kJ of heat in the following reaction? N2 (g) + 3…

A: The balanced reaction taking place is given as, =>

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

A: Acetone reacts with oxygen to form carbon dioxide and water. The combustion reaction of acetone is…

Q: 1)What is the specific heat if 24.8 g of a metal absorbs 275 J of energy and the temperature rises…

A:

Q: How much heat will be released (AH) if 0.5263 mol of NH3 are mixed with 0.20 mol of O, in the…

A: Balanced equation: 4NH3 (g) + O2 (g) --------->  2N2H4 (g)  +  2H2O (g)    ∆H° = -286 kJ/mol This…

Q: 1. A 275 J of work is done on a system that evolves 90 J of heat to the surroundings. a. What is the…

A: According to the first law of thermodynamics, the energy of the universe remains constant. For the…

Q: Hydrazine, N2H41), is used in rocket fuels. The thermochemical equation for the combustion of…

A:

Q: How many moles of H, are required to produce -4551 kJ of heat in the following reaction? N, (g) + 3…

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: How much heat is released in kJ when 2.50 mol of O2 reacts completely with methane?

A: The combustion of methane reaction is given as: CH4(g) + 2O2 (g) → CO2 (g) + 2H2O (l)   ΔH = −890.3…

Q: A system suffers an increase in internal energy of 80 J and at the same time has 50 J of work done…

A: Given : Increase in internal energy ( U ) = +80 J Work done on the system ( W ) = +50 J Heat change…

Q: The following thermochemical equation is for the reaction of carbon monoxide(g) with chlorine(g) to…

A:

Q: How much heat (kJ) is released by a 200-gram piece of silver as it cools from 1023°C to 300°C?

A: Given :-  Mass of piece of silver (m) = 200 g  Initial temperature (T1) = 1023°C  Final temperature…

Q: CH4 + 202 → CO₂ + 2H₂O AH-890kJ/mol How much heat is released when 2.7 g of methane gas is burned in…

A: Here we are required to find heat released when 2.7 gm of methane is burnt

Q: When 36 g of a metal at 89 C is added to 48 g of water at 27 C, the temperature of the water rises…

A: specific heat (Q) =m x S x  ΔT MASS =m SPECIFIC HEAT =S CHANGE IN TEMPERATURE=ΔT

Q: Which statement is true of the internal energy of the system and its surroundings following a…

A: The first law of thermodynamics states that the energy of the universe is constant i.e. the sum of…

Q: A 29.00 g sample of metal alloy is heated to 92.6 °C; then placed in 55.23 g of water in an…

A:

Q: How many kilojoules of heat are produced when 34.0 g of Fe2O3 reacts with an excess of CO according…

A: In this question, we want to determine the value of heat produced in kJ unit. How we can determine,…

Q: 2A + 3B → C       ΔHrxn = -125 kJ  Determine the amount of heat emitted when each of the following…

A: The enthalpy of reaction is based on the molar quantities of reactants that is given by the…

Q: 2. Carbon tetrachloride can be formed by reacting chlorine with methane: CH4 + 2 Cl2 → CCL4 + 2 H2…

A: CH4 + 2Cl2-----> CCl4 +2H2 ∆Hof (CH4) = -75 kJ/mol ∆Hof (CCl4 ) = -135 kJ/mol

Q: | How much heat is evolved when 320g of S0z is burned according to the chemical reacthon below? 2502…

A: Given Reaction:  2 SO2 +O2 ----------> 2SO3  Amount of SO2 =320 g  To Calclutae: Heat evolved…

Q: specific heat of gold is 0.129J/g C. what is molar heat capacity of gold?

A: The Question is about to calculate the Molar Heat Capacity of Gold -

Q: How much heat is evolved when 8.89x10° g of ammonia is produced according to the following equation?…

A: