What causes a cool fire to be smoky and a hot one to be smoke-free

Q: Explain the properties of Petroleum ?

A: Petroleum is composed of two words which are Petra means rock and oleum means oil thus, petroleum…

Q: Why is the amount of heat absorbed by the water not equal to the amount of heat produced by the…

A: Combustion is a exothermic chemical process in which in presence of atmospheric oxygen, molecules…

Q: what is the relation of heat gained by the ethanol to the heat lost by the metal

A: When ethanol comes in contact with the  metal which has higher temperature than ethanol then the…

Q: Calculate the amount of heat required for the conversion of 24 g of NO2 (M = %3D 46 g/mol) according…

A: Given that : Mass of NO2 = 24 g The molar mass of NO2 is 46 g/mol. The reaction for the process is :…

Q: In order to produce 980 kJ of heat, how many grams of H2 must burn? H2O) + 250 kJ H2g) + O 0.54 g…

A: 1- First we will determine the moles of H2 gas :  According to the chemical reaction equation,…

Q: 10. The enthalpy of combustion for dodecane (MW: 170.34 g/mol) is -7902 kJ/mol. How much heat is…

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Q: What mass of octane (C8H18) must be burned in order to release 5340 kJ of heat? DHcomb = – 5471…

A: Heat of reaction or enthalpy change ∆Hrxn is defined as heat released and absorbed during a…

Q: The addition of 9.54 kJ of heat is required to raise the temperature of 225.0 g of a liquid…

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Q: The generic reaction X2(g) + Y2(g) → 2XY(g) has an enthalpy of -212 kJ. How many moles of XY were…

A: Given, Chemical Reaction : X2(g) + Y2 (g) ---> 2 XY (g)  ∆H = -212 KJ

Q: Consider the following specific heats of metals. Metal Specific Heat Aluminum 0.897 J/°C∙g…

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Q: What effect does the initial temperature of the water have on the change in temperature of the water…

A: While hot metal was added into the water. The hot metals lose its temperature (energy) into the…

Q: Combustible or energy-generating molecules that can be harnessed to produce mechanical energy and…

A: "Combustible or energy- generating molecules that can be harnessed to produce mechanical energy and…

Q: How much CO2 is released from the combustion of ethanol sufficient to generate 100 GJ of energy?

A: Given   The energy to be generated is 100 GJ.

Q: Using the following equation for the combustion of postane, calculate the heat associated with the…

A: The postane reacts with oxygen to form phosphorous dioxide and water. The equation for the balanced…

Q: What happens when ethanol burns and after it burns

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

Q: What is latent heat of condensation?

A: Condensation: It is the transformation of water vapor into liquid. It's the opposite of evaporation,…

Q: Which statement best defines specific heat? The amount of heat required to increase the temperature…

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Q: 3) How many liters of combusted propane (C3H8; 44 g/mol) are required to heat a 100 kg steel pipe…

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Q: What is the enthalpy change to burn 48.1 g of ammonia?

A: The enthalpy change can be easily calculated as shown in the next step. The important formula used…

Q: Combustion of 1.71 g heptane (C7H16) in excess oxygen will release 75 KJ of heat. Calculate the heat…

A: Given data,Mass of heptane=1.71gEnergy release=75kJ

Q: What happens to the internal and external temperature of the body after drinking cold water?…

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Q: In terms of generator gas, or wood gas. How much energy (Joules) can be yielded from 1 kilogram of…

A: Since the calorific value of wood gas is approximately = 20 KJ/Kg