Question

Burning 1.45 g of methane [CH4(g), molar mass = 16.0 g/mol] with excess O2 raised the temperature of 258 g of H2O in a bomb calorimeter from 22.0 °C to 94.4 °C. Calculate the molar enthalpy of combustion of methane, in units of kJ/mol. (Cp,H2O = 4.184 J/g°C)

Name: burning 145 g of methane ch4g molar mass 160 gmol with excess o2 raised the temperature of 258 g of h2o in a bomb calorimeter from 220 c to 944 c calculate the molar enthalpy of combustion o 18475
Uploaded: 2022-03-01T02:47:41-08:00
Duration: 4 min 18 s
Channel: Nicholas Mogoi
Description: burning 145 g of methane ch4g molar mass 160 gmol with excess o2 raised the temperature of 258 g of h2o in a bomb calorimeter from 220 c to 944 c calculate the molar enthalpy of combustion o 18475

          Burning 1.45 g of methane [CH4(g), molar mass = 16.0 g/mol] with excess O2 raised the temperature of 258 g of H2O in a bomb calorimeter from 22.0 °C to 94.4 °C. Calculate the molar enthalpy of combustion of methane, in units of kJ/mol. (Cp,H2O = 4.184 J/g°C)

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Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Nicholas Mogoi

03/01/2022

Step 1

184 \, J/g°C \) (specific heat capacity of water) \( \Delta T = 94.4°C - 22.0°C = 72.4°C \) (change in temperature) \[ q = 258g \times 4.184 J/g°C \times 72.4°C = 78,070.656 J \] Show more…

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Burning 1.45 g of methane [CH4(g), molar mass = 16.0 g/mol] with excess O2 raised the temperature of 258 g of H2O in a bomb calorimeter from 22.0 °C to 94.4 °C. Calculate the molar enthalpy of combustion of methane, in units of kJ/mol. (Cp,H2O = 4.184 J/g°C)