The bomb calorimeter in exercise 102 is filled with 987g water. the initial temperature of the calorimeter contents is 23.32. a 1.056g sample of benzoic acid is combusted in the calorimeter. what is the final temperature of the calorimeter contents

25.907°C

Explanation:

In Exercise 102, heat capacity of bomb calorimeter is 6.660 kJ/°C

The heat of combustion of benzoic acid is equivalent to the total heat energy released to the bomb calorimeter and water in the calorimeter.

Thus:

= heat of combustion of benzoic acid

= heat energy released to water

= heat energy released to the calorimeter

Therefore,

1.056*26.42 = [0.987*4.18 + 6.66]( - 23.32)

27.8995 = [4.12566+6.660]( - 23.32)

( - 23.32) = 27.8995/10.7857 = 2.587

= 23.32 + 2.587 = 25.907°C

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.