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junior college 1 | H2 Maths
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H2 Chemistry.
Topic on Thermochemistry - calculate the combustion enthalpy for benzene in kilojoule per mole.
Answer is: ΔH = -3265 kJ/mol (not sure what do i do first)
Date Posted: 7 years ago
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Finding heat released consists of two steps: 1) finding energy required to raise 250 g of water (specific heat x weight) then 2) finding energy required to raise 250 g of water by 7.48 C (ans from step 1 x 7.48). Don't forget to put - in front of 4.18 in step 1 since it is an exothermic process. (Note: I used the dimension analysis method in my working to find heat released but I dunno if you learned that)
Date Posted:
7 years ago
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