▼ Part A one cup of popcorn that produces 155 kJ when burned in a calorimeter Submit Part B q= 15. ΑΣΦ Submit Request Answer a sample of butter that produces 30.6 kJ when burned in a calorimeter IVE ΑΣΦ Provide Feedback ? Request Answer kcal kcal

Q: Consider the following thermochemical equations (Note: HA is a weak acid) H+(aq) + OH-(aq) → H2O(l)…

A: Choose the equation that shows the correct relationship between their enthalpy changes--

Q: Consider these reactions: Reaction 1: H2(�)+Cl2(�)⟶2HCl(�)Δ�=−184.6 kJ  Reaction 2:…

A:

Q: a sample of octane is burned in a bomb calorimeter containing 1.00 x 10^2 g H2O. If the water temp…

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Q: Part A Determine the mass of CO2 produced by burning enough carbon (in the form of charcoal) to…

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Q: A sample of 25.2 g of a candy bar was burned in a calorimeter. The calorimeter was calibrated to…

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Q: Use the information for the reaction given below to answer the following questions. CH4 (g) + 2H₂O…

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Q: The following reaction using hydrogen and oxygen is carried out in a bomb calorimeter: 2H2(g)  +…

A: Molar mass of water is 18 g/mol. Given mole of water is 0.1 mole. Calculate mass of water    (Molar…

Q: A 3.00 g sample of food was burned in a bomb calorimeter. The temperature of 1 kg of water was…

A: Given data: Temperature raised from 25.0 to 36.4oC Cp of water = 1.00 cal/goC mass of water = 1 kg…

Q: Perform the conversions between energy units. 441 kJ= 2715 kcal = J kJ

A: For KJ to J, multiply the energy value by 1000.For KCal to KJ, multiply the energy value by…

Q: O Macmillan Learning Perform the conversions between energy units. 8.70 × 10² kJ = 3255 kcal = 5.27…

A: As we know that,1 kJ = 103 J1 kcal = 4.184 kJ1 kcal = 4184 J

Q: A serving of a breakfast cereal contains 3 g of protein, 18 g of carbohydrates, and 6 g of fat. What…

A: Given the average number of calories produced by combustion of 1 gram of fat is 9.1 calories, 1 gram…

Q: N₂(g) + 3H₂(g) ---> 2NH3(g) AH = -92.6 kJ How many moles of N₂ are needed to produce energy? 1 mol 2…

A: From given reaction it's clear one mole of N2 react with 3 mole of H2 and produced two mole of NH3…

Q: A pint of premium ice cream can contain 1100 Calories. What mass of fat, in grams and pounds, must…

A: Given the average number of calories produced by combustion of 1 gram of fat is 9.1 calorie But also…

Q: To measure the caloric content of a new breakfast bar, you burn a 2.00 g sample in a calibrated bomb…

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Q: Add more NH3 what will happen to H2?

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A: Given: Mass of sucrose= 3.50 g Temperature, t1= 25°C Temperature, t2= 29°C

Q: A 2.5 g sample of french fries is placed in a calorimeter with 500.0 g of water at an initial…

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Q: Answer the following questions for the balanced reaction. CO2 (g)     +      2H2O(l)          -->…

A: balanced reactionCO2(g) + 2H2O(l) → CH4(g) +2O2g   ∆Hrxn = 213 KCal∵molar mass of CO2 = 44 g…

Q: A serving of fish contains 47.0 g of protein value of 4.00 kcal/g and fat has 9.10 kcal/ Report…

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Q: le Hess's law part of the experiment, how many g of NaOH and mL of 1.0M HCl are added to the…

A: 2.00 to 2.50gm of NaOH and 20.0ml of 1.0M HCL

Q: If you have 10 g of each reactant how much energy can you produce? 2 H2 + O2 -> 2 H2O + 80kJ

A: For the production of 2 moles of water, released energy is 80 kJ

Q: What is the product of this?

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Q: Calorimetry NaOH using a coffee-cup calorimeter which was calibrated using 5.00 mL of 0.900 M HCl…

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Q: Calculate "q" (in kJ) for the following reaction if 11.35 grams of SO2(g) reacted with excess…

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Q: Part A: Calorimetry Tip for calorimetry problems: Always remember the 1" Law of Thermodynamics:…

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Q: Use Reaction 1. Determine the mass, in grams, of chlorine gas consumed (with excess H₂) when 1,479.0…

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Q: 2. Which is the enthalpy of the forward reaction?

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Q: if a solution inside a calorimeter rises in temp by 3.2 celicus how much of this temperature rise…

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Q: Answer the following stoichiometry question  If the reaction of the combustion of ethane 2C4H10(g)…

A: Given,The reaction:2 C4H10 (g) + 13 O2 (g)  8 CO2 (g) + 10 H2O (g)   5760 kJ of heat released in the…

Q: QUESTION 10 The metabolism of one glucose with six oxygens to form six carbon dioxides and six…

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Q: How many kilojoules are absorbed when 281 gg of PCl5PCl5 reacts? PCl5(g)→PCl3(g)+Cl2(g)ΔH=+67kJ

A: Phosphorus pentachloride decomposes into phosphorus trichloride and chlorine. The equation for the…

Q: Calorimetry NaOH using a coffee-cup calorimeter which was calibrated using 5.00 mL of 0.900 M HCl…

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Q: sample of 20.1 g of a candy bar was burned in a calorimeter. The calorimeter was calibrated to have…

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Q: he average adult human burns 2.00 x 10³ kcal per day in energy. What is this rate in kJ per hour ?…

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Q: Calorimetry NaOH using a coffee-cup calorimeter which was calibrated using 5.00 mL of 0.900 M HCl…

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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.