A man consumes 2055 kcal of food in one day, converting most of it to body temperature. If he loses half this energy by evaporat

Question

4 years ago

8

ing water (through breathing and sweating), how many kilograms of water evaporate?

2 answers:

vitfil [10] · Answer 1 · 2021-12-31T18:38:23+03:00

8 0

Answer:

1.903 kg.

Explanation:

Energy obtained from the food, Q= 2055kCal

Half of the energy lost to evaporating water = 2055/2

= 1027.5 kCal

Latent heat of water, L = 540 kCal/kg

Q= m × L

m = 1027.5/540

= 1.903 kg.

9966 [12] · Answer 2 · 2021-12-31T16:19:59+03:00

9966 [12]4 years ago

3 0

Answer:

3.81kg

Explanation:

Given that heat lost by man Q= 2055kCal

Latent heat of water L = 540KCal/Kg

Mass of water evaporated = M

Using

Q= ML

2055= M * 540

M= 2055/540

M= 3.81kg