chemistry

How much heat will be released if 30 g of octane is burned in excess of oxygen?
C8 H18 + 12.5 O2 yields 8CO2 + 9H2O Delta H= -5483.4 kJ

  1. 👍 1
  2. 👎 0
  3. 👁 308
asked by KF
  1. You know 5483 kJ is released when burning 114 g octane. So how much is released if you burn 30 g.

    1. 👍 0
    2. 👎 0
  2. 56

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. chemistry

    how much heat will be released if 30 grams of octane is burned in excess oxygen?

    asked by lisa on February 28, 2010
  2. chemistry

    During the combustion of 5.00g of octane C8H18, 239.5 kcal is released. Write a balanced equation for the combustion reaction. Are reactants or products favored? What is the sign of change of heat for this reaction? how much

    asked by jennifer on June 7, 2015
  3. Thermochemistry

    The standard enthalpy of formation of n-octane is -249.95 kJ/mol. Compute the amount of heat liberated when 5.24 g of n-octane is burned completely with excess oxygen to form carbon dioxide and liquid water.

    asked by LaurenB on December 4, 2011
  4. chemistry

    A 1.800 g sample of octane, C8H18, was burned in a bomb calorimeter whose total heat capacity is 11.66 kJ/°C. The temperature of the calorimeter plus contents increased from 21.12°C to 29.85°C. What is the heat of combustion

    asked by evgeny on January 31, 2013
  5. Science: Chemistry - Enthalpy

    The enthalpy change in the combustion of the hydrocarbon octane is delta H = -5.48 x 10^3 kJ/mol C8H18(l). How much heat, in kilojoules, is liberated per gallon of octane burned? (Density of octane = 0.703 g/mL; 1 gal = 3.785 L.)

    asked by Jackie on June 8, 2011
  6. Chemistry

    The enthalpy change in the combustion of the hydrocarbon octane is delta H = -5.48 x 10^3 kJ/mol C8H18 (l). How much heat, in kilojoules, is liberated per gallon of octane burned? (Density of octane = 0.703 g/mL; 1 gal = 3.785 L.)

    asked by Jackie D on June 8, 2011
  7. chemistry

    When a 3.10g sample of liquid octane (C8H18) is burned in a bomb calorimeter, the temperature of the calorimeter rises by 26.8∘C. The heat capacity of the calorimeter, measured in a separate experiment, is 6.30kJ/∘C .

    asked by annoymous on October 28, 2014
  8. Chemistry

    During the combustion of 5.00 g of octane, C8H18, 239.5 kcal (1002 kJ) is released. How many moles of octane must be burned to release 451.4 kcal ?

    asked by Haley on November 1, 2018
  9. Chemistry

    The overall reaction in a commercial heat pack can be represented as shown below. 4 Fe(s) + 3 O2(g) 2 Fe2O3(s) ΔH = -1652 kJ How much heat is released when 4.00 mol iron is reacted with excess O2? How much heat is released when

    asked by Anonymous on January 13, 2015
  10. Chemistry

    How much heat would be released by burning one gallon of octane? The density of octane is 0.703g/mL. 1 gallon= 3.79 liters.

    asked by Amber on November 21, 2012

More Similar Questions