On a 14 day wilderness expedition you'll need to heat 2.0 kg of water to the boiling point each day. The air temperature will average 25 °C. You have available canisters of compressed butane (C4H10) fuel, which you'll burn to heat the water. Each canister has 100. g of butane in it. What is the minimum number of fuel canisters you must bring? The standard heat of formation of butane at 25 °C is - 125.7 kJ/mol. You'll probably find other helpful data in the ALEKS Data resource. :0 canisters: X

On a 14 day wilderness expedition you'll need to heat 2.0 kg of water to the boiling point each day. The air temperature will average 25 °C. You have available canisters of compressed butane (C4H10) fuel, which you'll burn to heat the water. Each canister has 100. g of butane in it. What is the minimum number of fuel canisters you must bring? The standard heat of formation of butane at 25 °C is - 125.7 kJ/mol. You'll probably find other helpful data in the ALEKS Data resource. :0 canisters: X

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Gram for gram, fats in food have much more chemical energy than sugar. One component of fat is stearic acid, C18H36O2. When a sample of 1.02 g of stearicd acid was burned completely in a bomb calorimeter, the temperature of the calorimeter rose by 4.26 oC. The heat capacity of the calorimeter was 9.43 kJ/oC. Calculate the molar heat of combustion of stearic acid in kilojoules per mole. answer: (-11189 kJ/mol)
Suppose 200.0 mL of 0.50 M HCl and 200.0 mL of 0.50 M NaOH, both initially at 25.0°C, are mixed in a thermos flask. When the reaction is complete, the temperature is 28.4°C. Assuming that the solutions have the same heat capacity as pure water, compute the heat released (in kJ).
On a 7 day wilderness expedition you'll need to heat 2.0 kg of water to the boiling point each day. The air temperature will average 25 °C. You have available canisters of compressed propane (C,H) fuel, which you'll burn to heat the water. Each canister has 25. g of propane in it. What is the minimum number of fuel canisters you must bring? The standard heat of formation of propane at 25 °C is – 103.85 kJ/mol. You'll probably find other helpful data in the ALEKS Data resource. canisters:
THe G.R.A.S.P. method
A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. In an experiment, a 1.4710 g sample of maleic acid (C4H4O4) is burned completely in a bomb calorimeter. The calorimeter is surrounded by 1159 g of water. During the combustion the temperature increases from 22.46 to 25.59 °C. The heat capacity of the calorimeter, not including the surrounding water, was determined in a previous experiment to be 852.2 J/°C. Assuming that no energy is lost to the surroundings, calculate the molar heat of combustion of maleic acid based on these data. Assuming that no energy is lost to the surroundings, what is the molar heat of combustion of maleic acid, based on these data? (in kJ/mol). C4H4O4(s) + 3O2(g) → 2 H2O(l) + 4 CO2(g) + Energy
A quantity of 2.00×102 mL of 0.786 M HCl is mixed with 2.00×102 mL of 0.393 M Ba(OH)2 in a constant-pressure calorimeter of negligible heat capacity. The initial temperature of the HCl and Ba(OH)2 solutions is the same at 20.76°C. For the process below, the heat of neutralization is −56.2 kJ/mol. What is the final temperature of the mixed solutions? H+(aq) + OH−(aq)→H2O(l) _____°C
When a 4.31 g sample of liquid octane (C8H18) is burned in a bomb calorimeter, the temperature of the calorimeter rises by 27.3 °C. The heat capacity of the calorimeter, measured in a separate experiment, is 6.2 kJ/•C. The calorimeter also contains 3.00 kg of water, specific heat capacity of 4.18 J/g°C. Determine the heat of combustion of octane in units of kJ/mol octane. Enter your answer numerically and in terms of kJ/mol.
1.) The molar heat of combustion of octane to form carbon dioxide and water vapour is ─5470.1kJ/mol. Using this value, determine the mass of octane required to increase the temperature of 1.50 L of water from 22.0°C to 85.6°C. 2.) A simple calorimeter is filled with 250g of water initially at 25.0°C. A mass of 0.500g of benzene is completely burned to heat the water in the calorimeter. The highest temperature of the calorimeter water is measured at 44.0°C. What is the experimental value of the molar enthalpy of combustion of benzene?
On a 14 day wilderness expedition you'll need to heat 3.0 kg of water to the boiling point each day. The air temperature will average 25 °C. You have available canisters of compressed propane (C₂Hg) fuel, which you'll burn to heat the water. Each canister has 50. g of propane in it. What is the minimum number of fuel canisters you must bring? The standard heat of formation of propane at 25 °C is -103.8 kJ/mol. You'll probably find other helpful data in the ALEKS Data resource. canisters: 0 X Ś
Many barbeque grills use propane gas, C3H8(g) as a fuel source. Using standard enthalpies of formation, calculate the quantity of heat produced, in kJ, when 25 liters of liquid propane is completely combusted in air. (The density of liquid propane is 582 kg/m3.) Note: The propane is in the condensed liquid state in the tank but changes to the gas phase as it is released. Calculate the change in enthalpy for the reaction assuming all reactants and products are in the gas phase.
A 25.0 mL portion of dilute HCl (aq) is combined with a 25.0 mL portion of dilute NaOH in a coffee-cup calorimeter. Both solutions are initially at a temperature of 23.3 ºC. The reaction produces enough heat to raise the final temperature of the 50.0 mL of liquid in the calorimeter to 25.3 ºC . What is qrxn in J? Assume the density of the reaction mixture is 1.0 g/mL and the specific heat of the solution is 4.184 J/g· ºC