Answer:
The answer to your question is 1137.45 kJ
Explanation:
Data
mass = 424 g
T1 = 22.6°C
T2 = 149°C
Clw = 4.184 J/g°C
Cv = 2.078 j/g°C
Latent heat = 2257 J/g
Process
1.- Heat of liquid
Heat = (424)(4.184)(100 - 22.6)
Heat = 137308.8 J
2.- Calculate latent heat
Latent heat = (424)(2257)
Latent heat = 956968 J
3.- Heat of vapor
Heat = (424)(2.078)(149 - 100)
Heat = 43172.5 J
4.- Total heat
Heat = 137308.8 + 956968 + 43172.5
Heat = 1137449.3 J = 1137.45 kJ
Explanation:
The deeper you drill, the older the rock.
the rock & sediments are estimated at 86 million years old. drilled to a depth of 8,000 ft.
C=1.7M; M=58.5gmol-¹; V=400ml=400g; m=?
C=n/V
but n=m/V
=>C=m/MV
=>m=CMV
=1.7 x 58.5 x 400
=39780g
Answer:
The correct option is:
Plant uses light energy to produce food molecule during photosynthesis and obtain cellular energy from the bond of these molecule during respiration .
Explanation:
Important points :
Photosynthesis : It is a process in which green <u>plants prepare their food </u>usin<u>g</u> sunlight from CO2 and water .
Here, Food is produced
Respiration : It is a process by which organism obtain energy by breaking the food molecules.
Food molecules are source of energy which contain a large number of bonds. When these bonds break down during respiration , then energy is released .
= food molecule prepared by plants during photosynthesis . It contain many bonds
Hence The bond breaking release energy.