Combustion Definition and 363 Threads

  1. Pengwuino

    How do hydrogen combustion engines work?

    I was reading an article and they were talken about this new hydrogen hummer that will be powered by hydrogen. But it was a hydrogen combustion engine instead of a hydrogen electric vehicle. How does the combustion engine work? I thought hydrogen doesn't have that really quick explosive...
  2. P

    Calculate volume in combustion

    What volume of O2 (m3) is needed for the complete combustion of 152 g of C2H6 at 19.0oC and 100.0 kPa ?
  3. T

    Balanced Combustion Equations for Alcohols

    I simply want to check that these equations are balanced correctly: 2CH_3OH_{(g)} + 3O_2_{(g)} \rightarrow 2CO_2_{(g)} + 4H_2O_{(l)} CH_3CH_2OH_{(g)} + 3O_2_{(g)} \rightarrow 2CO_2_{(g)} + 3H_2O_{(l)} 2CH_3CH(OH)CH_3_{(g)} + 9O_2_{(g)} \rightarrow 6CO_2_{(g)} + 8H_2O_{(l)}...
  4. K

    What is the Scientific Explanation for Spontaneous Human Combustion?

    Hey this is a weird subject but have any of you ever thought about what causes it, if it is indeed real? I have a theory but it may be totally wrong as I don't have a background in physics or chemistry. Well I read about solar neutrinos and how they pass through our bodies all the time. They...
  5. T

    Solving the Combustion of Octane

    Hello, how would i solve the following?: "How many litres of air (78% N2, 22% O2 by volume) are needed for the combustion of 1 litre of octane, C8H18, a typical gasoline component, of density 0.70g/mL?" Note - 1 mole of oxygen gas is equal to 24.5 litres. I have done the chemical...
  6. D

    Enthelpy of Combustion for Magnesium

    I placed some magnesium ribbon in HCl and measured the temperature change. How would i find the change in enthalpy per mole of magnesium in the following reaction: Mg + 2HCl --> H2 +MgCl2 If i know the following information: change in temperature = 19C...
  7. D

    Calculating Heat Of Combustion

    Hey, I need some help with the following question: A sample of 0.1964g of Quinone (C6 H4 02, Relative Molar Mass = 108.1) was burned in a bomb calorimeter that heas a heat capacity of 1.56 kJ/M. The temperature in the caolorimeter rose from 19.3 to 22.5 degrees celcius. (a) write a...
  8. E

    What Triggers Hydrazine Decomposition in Space?

    Hi, I know this is a chemistry question but I was hoping there'd be a kind soul with a chemistry background whose willing to help! The space research group I work for has 2 satellites which have hydrazine (N2H4) monopropellant thrusters. From what I understand the pressurized hydrazine is...
  9. Clausius2

    Solving Supersonic Combustion Challenges with Detonations

    Ok. Let's suppose the next imaginary experiment. I encouragely promise that I don't know anything about nowadays supersonic combustion problems. I want to continue with the discussion spread in the "rocket thrust" thread, and what Enigma and Russ Waters said. There is a supersonic flow at the...
  10. J

    DIfferent Amounts of Oxygen in Combustion?

    Hello, I know I should have knowledge of this, but I can't seem to remember very well what happens in combustion reactions with a very short supply, limited supply, and abundant supply of oxygen. What is the difference? I know complete combustion hands down, but what happens in a problem such...
  11. T

    Speed and rate of combustion (in car)

    Hi. Let's suppose you have to drive 100 km, you would be wasting more gas by: a)driving at a slower speed b)driving at a faster speed . Someone who adores cars told me that when you press on the accelerator all you're really doing is allowing more air into the combustion...
  12. R

    Combustion Equation: C8H18 + O2 + N2 = CO2 + H2O

    Will you please help me... It is required to determine the molal analysis of the products of combustion when C8 H18 is burned with 200% theoretical air, and determine the dew point (saturation temperature corresponding to the partial pressure of water present in this equation) of the products...
  13. I

    Enthalpy of Combustion per mole of H2

    Enthalpyof Combustion of 1 molar volume of H2(g) divided by Enthalpyof Combustion of 1 molar volume of CH4(g) = Enthalpyof Combustion per mole of H2 divided by Enthalpy of Combustion per mole of CH4 why?
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