Physics
Physics, 10.10.2019 03:00, zhiyar9879

The energy content of a certain food is to be determined in a bomb calorimeter that contains 3 kg of water by burning a 2-g sample of it in the presence of 100 g of air in the reaction chamber. if the water temperature rises by 3.2°c when equilibrium is established, determine the energy content of the food, in kj/kg, by neglecting the thermal energy stored in the reaction chamber and the energy supplied by the mixer. by calculating the rough estimate of the error involved in neglecting the thermal energy stored in the reaction chamber, do you think it is reasonable to disregard the change in the sensible energy content of the reaction chamber in the analysis? the specific heat of water at room temperature is c = 4.18 kj/kg·°c. the constant-volume specific heat of air at room temperature is cv = 0.718 kj/kg·°c.

answer
Answers: 1

Other questions on the subject: Physics

image
Physics, 21.06.2019 18:00, arnold2619
Stars x and y are both bluish main sequence stars. star x has a higher absolute brightness than star y. how do the two stars compare? explain
Answers: 1
image
Physics, 22.06.2019 11:10, ladybee05
Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.
Answers: 3
image
Physics, 22.06.2019 15:30, anahitrejo1
1kg of water needs to recieve 4200j of energy to go from 90 degrees to 91 degrees. what is the specific heat capacity of water? what are the units?
Answers: 1
image
Physics, 22.06.2019 16:30, hii4199
When measuring volume, why is it important to use the correct tools and units to attain the greatest accuracy? use specific examples from the lab to support your answer. (5 points)
Answers: 1
Do you know the correct answer?
The energy content of a certain food is to be determined in a bomb calorimeter that contains 3 kg of...

Questions in other subjects:

Konu
Social Studies, 02.02.2021 23:10