Ammonia (NH3) decomposes to hydrogen and nitrogen and 22.0 kcal/mol of energy is absorbed.   2 NH3(g) → 3 H2(g) + N2(g)       ΔH = +22.0 kcal/mol How much energy is absorbed when 9.12 g of NH3 reacts?

Q: If a 6.7892 g sample of Chips is burnt and releases enough heat to raise the temperature of 96.6782…

A: Given: Mass of water = 96.6782 g. Initial temperature of water = 26.4 oC And the final temperature…

Q: Which has more kinetic energy: a 0.0018-kg bullet traveling at 403 m/s or a 5.3  107-kg ocean liner…

A: As we know kinetic energy involved the motion. Therefore the formula we are going to use to…

Q: Convert between energy units. a. 231 cal to kJ b. 132 x 10* kJ to kcal d. 2.88 x 10* J to Cal c.…

A: Convert between energy units. (a) 231 cal to kj (b) 132 × 104 kj to kcal (c) 4.99 × 103 kj to kWh…

Q: Use the References to access important values if needed for this question. In the laboratory a…

A: Given Mass = 13.9 g Temperature difference = 40-24.3 = 15.7°C Heat (Q)  = 28.2 J

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A: Given: Donuts Composition:  Carbs = 32 g Fats = 12 g Proteins = 2g and Energy Value: Carbs = 17 KJ/g…

Q: Based on the law of conservation of energy, which of the following describes the transformation of…

A: Option D is the Correct Choice.

Q: How much heat energy, in calories, is needed to heat 150 grams of water from 20.4 C to 50. 7 C ?

A: Solution With data of the particular heat capability of a substance, its mass, and therefore the…

Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

A: 1 calorie = 4.184 Joule  1 J = (1/4.184) cal  1 kJ = 1000 J  1 kJ = 239 cal

Q: What is the kinetic energy in joules of a 1030-kg automobile traveling at 86 km/h?  What is the…

A: Kinetic energy of the moving particle depend on its mass and velocity .

Q: How many times more kinetic energy does the dump truck have than the car?

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Q: How much heat, in joules and in calories, is required to heat a 28.4-g (1-oz) ice cube from −23.0 °C…

A: Given : Mass of ice cube = 28.4 g Initial temperature of ice cube = -23.0 oC And final temperature…

Q: Using the reaction for the combustion of methanol: 2CH3OH(l) + 3O2(g) → 2CO2(g) + 4H2O(g) ΔH comb =…

A: The combustion of methanol is given by the chemical reaction,2CH3OH(l)+3O2(g)→2CO2(g)+4H2O    ; ∆H…

Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

A: Given, 1 BTU = 1055 J Or, 7.14 BTU = (1055 x 7.14) J Or, 7.14 BTU = 7532.7 J = (7532.7 / 1000) KJ =…

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Q: N2 (g) + 3 H2 (g) 2 2 NH3 (g) + 100 KJ

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Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

A: Energy can have several units like kJ, kcal, BTU

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A:

Q: An average home in Colorado requires 20. GJ of heat per month. How many grams of natural gas…

A: Given, Amount of heat = 20 GJ = 20 x 109 J  (since, 1 GJ = 1 x 109 J) Enthalpy of reaction (△H°rxn)…

Q: How many calories are required to raise the temperature of a 150.g sample of gold from 25 Celsius to…

A: Given data is as follows: The mass of the gold sample = 150 g The initial temperature of gold Ti= 25…

Q: The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 130 J of…

A: The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 130 J of…

Q: A 1467 kg1467 kg car is traveling down the road at 81.0 km/h.81.0 km/h. While traveling at this rate…

A:

Q: A 88.0 g ball traveling at a speed of 2.30 m/s has a kinetic energy of J

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

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Q: Which one of the following is an endothermic process? A Hydrochloric acid and barium hydroxide are…

A: The energy difference of the products and reactants is known as the energy change of a reaction.

Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

A:

Q: A 68.0 kg person uses 214 kJ of energy to walk 1.00 km. This energy comes from “burning" glucose…

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Q: chemistry

A: Dear student I have given answer to your question in the image format.

Q: 10. Heat flow is a directional quantity. Heat flows from a warmer body to a colder body. The SI unit…

A: Heat is a form of energy. Energy is the capacity to do work. The process which takes place on it's…

Q: It takes 3.89x10* BTU of energy to heat a typical house, with an area of 2370 square feet, for a…

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Q: A 0.82 g corn chip burns and heats 50 g of water from 22.1 degrees C to 27.8 degrees * C . If 0.23 g…

A:

Q: The reaction of carbon dioxide (g) with hydrogen (g) to form carbon monoxide (g) and water(g)…

A: Recall the given reaction,                  CO2 g  +  H2 g  →  CO g  +  H2O g12.7 g of CO2 g…

Q: |The specific energy and density of gasoline is -47.3 MJ/kg and 716 kg/m³, respectively. What is its…

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Q: heat, upon which the temperature of the sample increases from 21.5 °

A: Dear student I have given answer to your question in the image format.

Q: How many calories are required to raise the temperature of 225g of water from 42.0 degrees Celcius…

A: Calories are required to raise the temperature of 225g of water from 42.0 degrees Celcius to 75.0…

Q: How many calories are needed to heat a pot of 1,600 g of water from 25 °C to 100. °C?

A: Specific Heat capacity is the amount of heat required to raise the temperature of 1 g of substance…

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Q: The specific energy and density of gasoline is -47.3 MJ/kg and 716 kg/m3, respectively. What is its…

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Q: 2116.16 J of energy is equivalent to how many calories?

A: Given :- 2116.16 J of energy  To calculate :- Energy in calorie.

Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

A:

Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

A: Given;  The joule (J) is the SI unit of energy. 1 calorie (cal) = 4.184 J 1 kilojoule (kJ) = 1000 J

Q: How much heat, in joules and calories, is needed to heat up 253 mL of water from 13.3 °C to 85.2 °C?…

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Q: What is the heat joules required to raise the temperature of 25 grams of water from 0 degree C to…

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Q: Let’s assume that a gallon of gasoline contains pure octane (C 8H 18) and has a density of 0.700…

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Q: 8.0-kg rock is dropped from a height of 3.0 m. At what height is the rock's kinetic energy twice its…

A: As we know potential energy =mgh

Q: A 2.9-g sample of rice is placed in a calorimeter. When the sample is burned, 23 kJ is given off.…

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Q: Does the kinetic energy of the ball increase or decrease as it moves higher?  (b) Does the…

A: (a). Kinetic energy is the energy possessed by an object when it is in motion. Kinetic energy…

Q: When we see that 10 gummy bears are 80 Calories meaning that each bear is 8 Calories, this really…

A: 10 gummy bears = 80 calories.  1 gummy bear = 8 calories. 1 calorie = 4.184 J 1 kJ = 1000 J.

Q: A nutritional bar contains 8575 nutritional calories. How many joules of energy is this?

A: