What is the most precise measurement this beaker can give?

Metabolic activity in the human body releases approximately 1.0 x 104kJ of heat per day. Assuming the body is 50 kg of water, ho

Zarrin [17]

Answer:

The body temperature would rise by 47.85 °C

The amount of water the body evaporates is 4.15 kg.

This makes sense because firstly the value obtained is positive then secondly it is a normal occurrence in the real world that in a place where the temperature is high the body usually produce sweat in order to balance its internal temperature

Explanation:

Considering the relationship (between the heat released and the mass of the object) as shown below

q = msΔT

where q is the heat released per day = $1.0 * 10^{4} kJ$

m is the mass of the body = 50 kg

ΔT is the temperature rise = ?

s is the specific heat of water = $4,18kJ/kg^{o} C$

substituting values we have

$1.0 * 10^{4} kJ$ = $(50kg) (4.18kJ/kg^{o}C )$ ΔT

ΔT = $\frac{1.0 * 10^{4}kg}{(50kg)(4.18kJ/kg^{o} C)}$

= 47.85°C

To maintain the normal body temperature (98.6F = 37°C) the amount of heat released by metabolism activity must be utilized for evaporation of some amount of water

Hence

$Amount of water that must be evaporated =\frac{heat released per day}{heat of vaporization of water}$

$= \frac{1.0* 10^{4}kJ}{2.41kJ/g} \\= 4149.38g\\=4.15kg$

Note (1 kg = 1000 g)

This makes sense because firstly the value obtained is positive then secondly it is a normal occurrence in the real world that in a place where the temperature is high the body usually produce sweat in order to balance its internal temperature

7 0

2 years ago

Why is one type of flame hotter than each other?

bearhunter [10]

Many different chemicals burn and produce flames, but different chemicals have different chemical properties, and produce different amounts of energy when they burn. Those which produce more energy, will also produce hotter flames.

8 0

2 years ago

In the amino acid formula, what does the "R-" represent?

Leya [2.2K]

Hey

the answer to this is going to be

c

6 0

2 years ago

Read 2 more answers

When are atoms considered stable?

katrin [286]

Answer:

when they have satisfied the octet rule naturally or through bonding to obtain full valence shells

Explanation:

Generally, most atoms of an element are unstable because they have a void in their electron shell to fill, hence, they need to react with other elements to fulfil this task of octet.

Octet rule states that atoms of elements engage in reactions to form compounds so they can have eight (8) valence electrons in their shell. Noble gases e.g argon, neon etc. are elements that have naturally satisfied this octet rule by possession of 8 valence electrons in their shell. Other elements that do not have this naturally becomes reactive and enter bonding with other atoms to obtain full valence shells.

6 0

2 years ago

Read 2 more answers

Calculate the value of the equilibrium constant, K c , for the reaction AgCl ( s ) + Cl − ( aq ) − ⇀ ↽ − AgCl − 2 ( aq ) K c = ?

Luda [366]

Answer:

The equilibrium constant is Kc $=1.9116*10^{-5}$