When 1.0 g of gasoline burns, it releases 11 kcal of heat. The density of gasoline is 0.74 g/mL.
Part A
How many megajoules are released when 4.0 gal of gasoline burns?
Part B
If a television requires 150 kJ/h to run, how many hours can the television run on the energy provided by 4.0 gal of gasoline?
Can someone explain on paper how they got their answer... Its confusing.
When 1.0 g of gasoline burns, it releases 11 kcal of heat. The density of gasoline...
2a. The combustion of 1.0 g of gasoline produces 9.8 kcal of heat energy. How many megajoules of energy are produced by the combustion of 1.8 gallons of gasoline? (Density of gasoline = 0.74 g/mL) (10 points) b. What is the change in temperature (AT) when a 28.0 g of copper absorbs 1488 J of energy? (specific heat of copper = 0.39 J/g °C) (10 points) Frus
15. When gasoline burns in a car engine, the heat released causes the products CO2 and H20 to expand, which pushes the pistons outward. Excess heat is removed by the car's radiator. If the expanding gases do 478.9 J of work on the pistons and the system releases 846.8 J to the surroundings as heat, calculate the change in energy (AE) in J, KJ, and kcal. (4.0 pts) Energy change Your solutions (AE-+ w) (1 cal = 4.184 J, 1...
Question 25 2 pts Butane releases heat when it burns. 2C4H10(g) + 1302(g) → 8C02(g) + 10H2O(1) AHrxn=-5754 kJ How much heat would be released if 0.171 mol of butane (C4H10)is combusted? Your answer should have 3 significant figures. Question 26 2 pts Name 3 ions that have the condensed electron configuration equal to Ne. Input the answers with the symbol and charge with no space between-for example, H+ or Ba2+.
Question 25 2 pts Butane releases heat when it burns. 2C4H10(g) + 1302(g) → 8C02(g) + 10H2O(1) AHrxn=-5754 kJ How much heat would be released if 0.171 mol of butane (C4H10)is combusted? Your answer should have 3 significant figures. Question 26 2 pts Name 3 ions that have the condensed electron configuration equal to Ne. Input the answers with the symbol and charge with no space between-for example, H+ or Ba2+.
Gasoline (octane) burns according the following equation. 2 C3H18 (1) + 25 O2 (g) 16 CO2 (g) +18 H20 (1) AH°= - 10,943 kJ How much heat is released when 10 g of octane is burned? (The molar mass of C = 12.0 g/mol, the molar mass of H = 1.0 g/mol). 960 kJ 62,400 kJ 480 kJ 1920 kJ
Gasoline (octane) burns according the following equation. 2 C3H18 (1) + 25 O2 (g) 16 CO2 (g) +18 H20 (1) AH°= – 10,943 kJ How much heat is released when 10 g of octane is burned? (The molar mass of C = 12.0 g/mol, the molar mass of H = 1.0 g/mol). O 1920 kJ O 960 kJ 480 kJ 62,400 kJ
For the unbalanced combustion reaction shown below, 1 mol of ethanol, C2H5OH, releases 327 kcal (1370 kJ). C2H5OH+O2→CO2+H2O How much heat (in kilocalories) is released from the combustion of 7.38 g of ethanol? How many grams of C2H5OH must be burned to raise the temperature of 360.0 mL of water from 20.0 ∘C to 100.0 ∘C? (The specific heat of water is 1.00 cal/g⋅∘C or 4.184 J/(g⋅∘C). Assume the density of water at 20.0∘C is 1.00 g/mL.
When diamond oxidizes (burns), heat is released: C(s) diamond O2(g) - CO, (a): AH = 395.4 KJ/mol; If 15,400 Kj are released while burning diamond, how many grams of diamond are consumed. (5 points)
Chapter 3, Question 21 Parameterization When 2.29 g of octanol ( C3H180 ) burns completely in excess O2 gas at constant pressure and 298 K, it releases -93.0 k) of energy. X Incorrect. Write the balanced chemical equation for this reaction. Ignore aggregation states in your answer. Edit X] Incorrect. (a) What is the molar energy of combustion (in kJ/mol) of octanol ? kJ/mol (b) How much energy (in kJ) is released per mole of Oz consumed?
Methanol (CH3OH) burns according to the equation 2CH3OH(l) + 3O2(g) → 2CO2(g) + 4H2O(l), ΔH°rxn = –1454 kJ/mol. A) How much heat, in kilojoules, is given off when 150.0 g of methanol is burned? [ Select ] B) How many grams of CO2 are produced when the amount of heat determined in part A is released? [ Select ] Molar masses: CH3OH = 32.04 g/mol O2 = 32.00 g/mol CO2 = 44.01 g/mol H2O = 18.02 g/mol