posted by .

The heating value of a Gas is 39MJm-3

a) If 4.5m-3 of the gas is burned how much energy is released?

b) If the gas is burned in 5 minutes what is the power?

c) If the burning occurs in an engine that converts the energy to forward
motion and the engine is 20% efficient in converting the heat energy: what is
the kinetic energy a vehicle would have after burning the above quantity of
gas? – (assume no losses due to friction or air resistance)

  • physics -

    a) Do you mean 4.5 m-3 or
    4.5*10^-3 m^3 ?

    The number you wrote is not a volume

  • physics -

    I'm not sure, it says 4.5 m^-3

  • physics -

    4.5/m^3 just is not volume. Assume it meant 4.5m3.

    Then energy= heatvalue*volume=39MJ/m^3*4.5m^3=you do it.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    which of the following steps in the formation of KCI releases energy?
  2. chem

    HOw much energy is required to heat 36.0g H2O from a liquid at 65C to a gas at 115C?
  3. Physics Last Question HEEEELLLPPP !

    #1 The internal energy of the gas in a gasoline engine’s cylinder decreases by 295 J. If 47.0 J of work is done by the gas, how much energy is transferred as heat?
  4. Chemistry

    A hydrocarbon gas burned completely in O2 to give CO2 and H2O. It was found that 1volume of a hydrocarbon gas at STP produced 2volumes of CO2 and 3 volumes of steam at STP. What is the emperical formula of this gas?
  5. chemistry

    Methane gas is burned releasing Carbon Dioxide into the atmosphere. How much CO2 (g) is released if 78.5 Liters of Methane is burned?
  6. Chemistry

    When one gram of gas, is burned, 55.5kJ of heat are released. How many pounds of methane gas must be burned to release 2.578 x 10^3kJ of heat?
  7. Science

    How much graphite carbon must be burned in oxygen gas to produce 2.2 grams of carbon dioxide gas
  8. Chemistry

    In the lab, 5.8 L of methane gas is burned with excess oxygen gas at SATP. How much carbon dioxide gas is produced?
  9. Physics

    A tank with a constant volume of 3.44 m3 contains 14 moles of a monatomic ideal gas. The gas is initially at a temperature of 300 K. An electric heater is used to transfer 52600 J of energy into the gas. It may help you to recall that …
  10. Physics

    Suppose that 4.7 moles of a monatomic ideal gas (atomic mass = 8.5 × 10^-27 kg) are heated from 300K to 500K at a constant volume of 0.47 m^3. It may help you to recall that CVCV = 12.47 J/K/mole and CPCP = 20.79 J/K/mole for a monatomic …

More Similar Questions