Methanol is combusted to provide heat. The reaction and the enthalpy for the reaction are shown...

Question

Question

Methanol is combusted to provide heat. The reaction and the enthalpy for the reaction are shown below.

CH3OH(l)+1.5O2(g)→CO2(g)+2H2O(l)ΔH=−715kJ

Below is a list of sentences that describe a chemical reaction. Choose all of the sentences that apply to the above reaction.

Check all that apply.

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The enthalpy for 2CH3OH(g)+3O2(g)→2CO2(g)+4H2O(l) is −715 kJ

The enthalpy for 2CH3OH(l)+3O2(g)→2CO2(g)+4H2O(l) is 715 kJ

This process is endothermic.

The enthalpy for 2CH3OH(l)+3O2(g)→2CO2(g)+4H2O(l) is −1,430 kJ

This chemical reaction transfers heat from the surroundings to the system.

This process is exothermic.

The enthalpy for 2CH3OH(l)+3O2(g)→2CO2(g)+4H2O(l) is 1,430 kJ

This chemical reaction transfers heat from the system to the surroundings.

Answer 1

Answer #1

CH 0H)+1502g CO2(g)+2H2ODAH-715kJ The enthalpy for 2CH3OH +302(g)-2CO2(g)+4H20) is-715 kJ. False. The enthalpy is equal to, A

Answer 2

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