A fuel has these enthalpies of combustion: -2057.8 kJ mol⁻¹ and -48.9 kJ g⁻¹ - HSC - SSCE Chemistry - Question 13 - 2024 - Paper 1
Question 13
A fuel has these enthalpies of combustion: -2057.8 kJ mol⁻¹ and -48.9 kJ g⁻¹.
Which of the following correctly identifies the fuel?
A. Ethanol (MM = 46.1 g mol⁻¹)
... show full transcript
Worked Solution & Example Answer:A fuel has these enthalpies of combustion: -2057.8 kJ mol⁻¹ and -48.9 kJ g⁻¹ - HSC - SSCE Chemistry - Question 13 - 2024 - Paper 1
Step 1
A. Ethanol (MM = 46.1 g mol⁻¹)
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Calculate the enthalpy of combustion per mole and per gram for ethanol to check against given values.
Step 2
B. Propane (MM = 44.1 g mol⁻¹)
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Calculate the enthalpy of combustion per mole and per gram for propane to check against given values.
Step 3
C. Propene (MM = 42.1 g mol⁻¹)
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Calculate the enthalpy of combustion per mole and per gram for propene to check against given values. This will match the provided values.
Step 4
D. Hydrogen (MM = 2.02 g mol⁻¹)
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Calculate the enthalpy of combustion per mole and per gram for hydrogen to check against given values.
