chemsitry

Calculate the work in kilojoules done during a reaction in which the volume expands from 10.0 L to 95.9 L against an external pressure of 2.5 atm.

  1. 0
  2. 0
asked by hamed
  1. what is Pressure*volume?
    85.9*2.5*101kPa*dm^3== 21689750e-6 Pa*L^3

    but what is a Pa? force/m^2=N/m^2
    so Pa*m^3=Joules
    PV=21.7Joules

    1. 0
    posted by bobpursley

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chem

    Part A : This is the first law of thermodynamics question. case 1 - the system expands and the surroundings get hotter case 2 - the system expands and the surroundgins get colder case 3 - the system contracts and the surroundings
  2. Chemistry

    A gas expands its volume from 4.7 L to 8.9 L at constant temperature. Answer the following: a) If the gas expands against vacuum conditions, calculate the work (in joules) done by the gas. b) Calculate the work done (in joules) by
  3. chemistry

    A mole of reacts at a constant pressure of 43.0atm via the reaction Before the reaction, the volume of the gaseous mixture was 5.00L . After the reaction, the volume was 2.00L . Calculate the value of the total energy change, , in
  4. chemistry... HELPP

    A gaseous reaction occurs at a constant pressure of 45.0 atm and releases 62.5 Kj of heat. Before the reaction, the volume of the system was 8.60 L . After the reaction, the volume of the system was 3.00 L. Calculate the total
  5. Chemistry

    A gaseous reaction occurs at a constant pressure of 50.0 atm and releases 55.6 kJ of heat. Before the reaction, the volume of the system was 7.60 L. After the reaction, the volume of the system was 2.00 L. Calculate the total
  6. Genera Chemistry

    A certain gas expands in volume from 1.75 L to 8.32 L at constant temperature. Calculate the work done (in Joules) by the gas if it expands against a constant pressure of 3.8 atm. Please explain and show the work and correct
  7. Science

    A certain gas expands in volume from 2.0L to 6.0L at constant temperature. Calculate the work done by the gas if it expands,against a vacuum.
  8. Chemistry

    A gaseous reaction occurs at a constant pressure of 50.0 atm and releases 69.8 kJ of heat. Before the reaction, the volume of the system was 8.80 L . After the reaction, the volume of the system was 2.80 L . Calculate the total
  9. science

    a) calculate the heat of reaction, in kilojoules, for the reaction: 2NO2(g) + 3H2(g)--->2NH3(g) + 2O2(g) b) is the reaction endothermic or exothermic? how can you tell? I will be happy to critique your work on this. You will have
  10. physics thermodynamics

    A gas expands from a volume of 2.00m^3 to 6.00m^3 and does 6912 joules of work against a constant outside pressure. Calculate this outside pressure in Pa. The answer is 1730 Pa, but I don't know how to get that. I honestly have no

More Similar Questions