55.13 grams of propane is needed in order to produce 2775 kJ of heat.

## What mass of propane would be required to supply kJ of heat?

Answer is: **55.125 grams** of propane must be burned.

## What mass of propane c3h8 must be burned?

Conclusion: **1.52 kg** of propane must be burned.

## What mass of propane would need to be combusted to release?

Thus, **approximately, 1/5 of a mole** of propane must be combusted with stoichiometric oxygen to evolve this amount of energy.

## What mass of liquid ethanol c2h5oh must be burned to supply 500 kJ of heat the standard enthalpy of combustion of ethanol at 298 K is kJ mol?

The enthalpy of combustion of ethanol is widely quoted in the public domain and is 1360 kJ/mol. Therefore in order to supply 500 kJ of heat you would need to burn (500/1360) = 0.368 moles of ethanol. The molecular weight of ethanol is 46.07 g/mol, so the mass required would be 0.368 x 46.07 = **16.95 g**.

## What mass of propane is necessary to react with the amount of oxygen?

Answer:- What mass of propane is necessary to react with the amount of oxygen calculated in the previous question? **g C3H8**.

## What is the mass of 2 moles of propane gas?

The atom that serves as the relative standard of determining mass and the number of particles in a mole. The volume occupied by one mole of a gas at standard correlation. The mass of two moles of propane gas, C3H8. The number of moles of propane gas, C3H8, are contained in **11** grams of the gas at standard conditions.

## What is the value of ΔH for the combustion of one mole of propane?

The standard enthalpy change for the combustion of 1 mole of propane is –**2043.0 kJ**.

## How much heat is released when 35 g of ethanol is burned?

Answer Expert Verified. If 46 g correspond to 1 mol, how much moles correspond 35 g? Ethanol released **1040 Kj**.

## How many millimoles of ethanol would need to be burned to generate the amount of energy that is needed to heat 200.0 g of water by 10.0 ∘ C the heat of combustion of ethanol is − 1368 kJ mol?

b. How many millimoles of ethanol would need to be burned to generate the amount of energy that is needed to heat 200.0 g of water by 10.0°C The heat of combustion of ethanol is –1368 kJ/mol. millimoles of ethanol: c.