Melymarrupe6704 Melymarrupe6704
  • 04-01-2018
  • Chemistry
contestada

Calculate the amount of heat transferred when 2.60 g of c2h2(g) is consumed in this reaction at constant pressure

Respuesta :

Dejanras
Dejanras Dejanras
  • 13-01-2018
Answer is: 125,55 kJ.
Chemical reaction: 2C₂H₂(g) + 5O₂(g) → 4CO₂(g) + 2H₂O(g) ΔH = -2511 kJ.
ΔH = -2511 ÷ 2 = -1255,5 kJ for 1 mol.
m(C₂H₂) = 2,60 g.
n(C₂H₂) = m(C₂H₂) ÷ M(C₂H₂).
n(C₂H₂) = 2,60 g ÷ 26 g/mol = 0,1 mol.
Q = ΔH · n.
Q = 1255,5kJ · 0,1 mol = 125,55 kJ.
Answer Link

Otras preguntas

how many atoms of hydrogen are present in the reactants and in the products? 6CO2 + 6H2O → C6H12O6 + 6O2
I need to convert this to a scientific notation 286,300,000,000.00
the region of flat land down by the ocean
_____ occurs when light changes direction after colliding with particles of matter
A 12 gallon tank is filled with water at a rate of 1/4in 5 seconds. It will take ____ Minutes and ____ seconds to fill 5/6 of the tank HELP
food A contains 150 calories in 3/4 of a serving. food B contains 250 calories in 2/3 of a serving. which food has fewer calories per serving?
Mrs. Jennings had a 5/7 gallon of paint. She gave 1/7 gallon each to some students. How many students received paint if Mrs. Jennings gave away all the paint?
A three-carbon alkene contains two double bonds. Predict its molecular formula
F=3gh+7c solve for g
what does como te llamas mean in Spanish?