Methanol is combusted to provide heat. The reaction and the enthalpy for the reaction are shown below.
Question:
Methanol is combusted to provide heat. The reaction and the enthalpy for the reaction are shown below.
CH 3 OH(1) + 1.5O 2 (g) ® CO 2 (g) + 2H 2 O (1) ΔH = -715 kJ
Below is a list of sentances that describe a chemical reaction. Choose all of the sentances that apply to the above reaction.
Check all that apply.
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This chemical reaction transfers heat from the system to the surroundings.
The enthalpy for 2CH 3 OH(l) + 3O 2 (g) ® 2CO 2 (g) + 4H 2 O(l) is – 1,430 kJ
The enthalpy for 2CH 3 OH(l) + 3O 2 (g) ® 2CO 2 (g) + 4H 2 O(l) is 1,430 kJ
This process is exothermic.
The enthalpy for 2CH 3 OH(l) + 3O 2 (g) ® 2CO 2 (g) + 4H 2 O(l) is – 715kJ
This process is endothermic.
This chemical reaction transfers heat from the surroundings to the system.
The enthalpy for 2CH 3 OH(l) + 3O 2 (g) ® 2CO 2 (g) + 4H 2 O(l) is 715kJ
Expert Answer:
