Question

oriocatorass References Quinone is an important type of molecule that is involved in photosynthesis. The transport of electrons mediated by quinone in certain enzymes allows plants to take water, carbon dioxide, and the energy of sunlight to create glucose. A 0.1939-g sample of quinone (CeH,O2) is burned in a bomb calorimeter with a heat capacity of 1.56 kJC. The temperature of the calorimeter increases by 3.1°C. Calculate the energy of combustion of quinone per gram and per mole kJ/g Energy per gram kJ/mol Energy per mole 10 item attempts remaining Try Another Version Submit Answen References) The energy content of food is typically determined using a bomb calorimeter. Consider the combustion of a 0.33-g sample of butter in a bomb calorimeter having a heat capacily of 2.67 kJ/C. If the temperature of the calorimeter increases from 23.5°C to 27.1°C, calculate the energy of combustion per gram of butter Energy of combustion kJ/g 10 item attempts remaining Try Another Version Submit Answer

Answer 1

Change in temperature s 3.1 °C (AT) 1939 9 Mass of Quinone (m) Moles of quinone (n) Mass ofquinone :0.i939- 0-0017s j Heat capaeity -1-56 kJjC (C) of Molar mas quinone C x AT Energy per gram KJ/C y 3.1 c x66s61-0 0. 9377 KJper grom Energy per mole AT O-00I79 X l-S6 0 0o 865 kJ per mo

Heat capacity (c) : 2 0 33 Mass hutter 3 6 C Change in temperature (AT) 27- - 23-5 Enesgy combustion. 3- 6 2 67 x 6 33 3.171 kJ/g