A2.741 g sample of a new organic material is combusted in a bomb calorimeter. the temperature of the calorimeter and its contents increase from 24.33 °c to 28.60 °c. the heat capacity (calorimeter constant) of the calorimeter is 25.57 kj/°c, what is the heat of combustion per gram of the material?

(the heat bomb calorimeter gained)=(the heat material A gave)
r.h.s=25.57 kJ/⁰C * (26.80-24.33)= 63.16 kJ
2.741g of material A made 63.16kJ
the heat of combustion per gram = 63.16/2.741 kJ/g =24.04kJ/g

North atlantic current or north atlantic drift is the answer

Answer : option c) heat is released during the process.explanation :

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.