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Author Question: Methanol (CH3OH) burns according to the equation 2CH3OH(l) + 3O2(g) 2CO2(g) + 4H2O(l), Hrxn = ... (Read 34 times)

stananza

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Question 1

If 10.6 moles of water at 35°C absorbs 12.30 kJ, what is the final temperature of the water? The specific heat of water is 4.184 J/g·°C.
◦ 15°C
◦ 20°C
◦ 35°C
◦ 50.°C
◦ 312°C

Question 2

Methanol (CH3OH) burns according to the equation
         2CH3OH(l) + 3O2(g) → 2CO2(g) + 4H2O(l), ΔH°rxn = –1454 kJ/mol.
How much heat, in kilojoules, is given off when 75.0 g of methanol is burned?
◦ 727 kJ
◦ 3.22 × 103 kJ
◦ 1.45 × 103 kJ
◦ 1.70 × 103 kJ
◦ 3.41 × 103 kJ


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Marked as best answer by stananza on Nov 5, 2023

dsd1212

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stananza

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Reply 2 on: Nov 5, 2023
Excellent


6ana001

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Reply 3 on: Yesterday
Great answer, keep it coming :)

 

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