Which of the following parameters is measured using a calorimeter?  Group of answer choicesThe heat energy evolved in a combustion reaction.The entropy of a combustion reaction. The amount of oxygen consumed in a combustion reaction.The density of a solution.

Direct calorimetry works because approximately ____% of the energy the body uses, eventually leaves as heat.Multiple choice question.60408020

The heat associated with the reaction which happens in the calorimeter is calculated by:Question 4Select one:adding the heat absorbed by the calorimeter to the heat absorbed by the solutiontaking the heat absorbed by the solution, and then changing the signtaking the heat absorbed by the calorimeter and then changing the signadding the heat absorbed by the calorimeter to the heat absorbed by the solution, and then changing the sign

To calculate the heat absorbed by the calorimeter you:Question 3Select one:multiply the calorimeter constant by the temperature change.multiply the mass of the solution by its specific heat capacity and by the temperature change. multiply the calorimeter constant by the mass of the calorimeter and by the temperature change.

An insulated calorimeter contains 100 g of water at 22 °C. A chemical reaction causes the temperature to increase by 6 °C. Given that water has a specific heat of 4.184 J/g°C, how much heat was transferred to or from the water? Group of answer choices-2.5 kJ-1.5 kJ-2.0 kJ-1.0 kJ

n an experiment 4.5 kg of a fuel was completely burnt . The heat produced wasmeasured to be 180,000 KJ . Calculate the calorific value of the fuel