Question

How much energy does it take to completely vaporize a cow? Assume that since a cow...

How much energy does it take to completely vaporize a cow? Assume that since a cow is mostly water, the thermodynamic properties of water will do in place of the cow. Water has a specific heat of 4187 J / (kg • K), a latent heat of vaporization of 2256 kJ / kg, and a boiling point of 373 K. A cow has a mass of 650 kg and a body temperature of 311 K.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Mass of cow

Change in temperature of cow's body

,

Heat energy required to completely voporize a cow is ,

To completely vaporize a cow, energy needed is

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
(a) How much energy does it take to heat 250 g of water from 20 ◦C...
(a) How much energy does it take to heat 250 g of water from 20 ◦C to the boiling point of 100 ◦C? (The specific heat of water is 4190 J/kg · K) (b) (Suppose you wanted to cause the temperature change in part (a) by using an 800W microwave. If we assume all the power delivered by the microwave goes into the water, how long will it take for the water to change temperature? (c) The heat of vaporization...
Q3. A cube with side lengths of 2.91 cm is heated to a constant temperature of...
Q3. A cube with side lengths of 2.91 cm is heated to a constant temperature of 720 ◦C at the focal point inside of a parabolic reflector. This has the effect of directing all of the cube’s radiant energy toward a 3.92 kg pack of ice that is initially at −19.0 ◦C. If the emissivity of the cube is 0.466, how long does it take for the ice to completely vaporize? Use the following numbers in your calculation: • The...
A cup of warm water (0.5 kg at 25*C) is poured into a large vat of...
A cup of warm water (0.5 kg at 25*C) is poured into a large vat of liquid nitrogen at 77K. The mixture is thermally insulated from the surrounding room. The following table of data may be relevant for this problem (all atmospheric pressure): Nitrogen Water Freezing Point(K) Boiling Point (K) 63 77 273 373 Specific Heat Capacity (J/kg.K) 1040 4186(water) 2108(ice) Latent Heat of Fusion(KJ/kg) Latent Heat of Vaporization (kJ/kg) 25.7 200 333 2260 (A) What will the final temperature...
To change 25 kg of ice -10°C to steam 100°C, how much heat is required? The...
To change 25 kg of ice -10°C to steam 100°C, how much heat is required? The specific heat of water is 4.184 kJ/kg. K. The latent heat of fusion for water at 0°C is approximately 334 kJ/kg (or 80 cal/g), and the latent heat of vaporization at 100°C is about 2,230 kJ/kg (533 cal/g).
How much energy is required to change a 23 g ice cube from ice at −...
How much energy is required to change a 23 g ice cube from ice at − 12 ◦ C to steam at 101 ◦ C? The specific heat of ice is 2090 J / kg · ◦ C and of water 4186 J / kg · ◦ C. The latent heat of fusion of water is 3 . 33 × 10^5 J / kg, its latent heat of vaporization is 2 . 26 × 10^6 J / kg, and the...
How much time (in seconds) is needed for a surgical cauterizer to raise the temperature of...
How much time (in seconds) is needed for a surgical cauterizer to raise the temperature of 2.00 g of tissue from 37.0°C to 100°C and then boil away 0.200 g of water, if it puts out 1.50 mA at 20.0 kV? Ignore heat transfer to the surroundings. (Assume the specific heat of tissue is 3,500 J/(kg · °C) and the latent heat of vaporization of water is 2,256 kJ/kg.)
How much thermal energy (in J) is required to boil 2.25 kg of water at 100.0°C...
How much thermal energy (in J) is required to boil 2.25 kg of water at 100.0°C into steam at 149.0°C? The latent heat of vaporization of water is 2.26 ✕ 106 J/kg and the specific heat of steam is 2010 J kg · °C .
8.33 kg of steam at temperature of 150 ∘C has 2.23×107 J of heat removed from...
8.33 kg of steam at temperature of 150 ∘C has 2.23×107 J of heat removed from it. Determine the final temperature and phase of the result once the heat has been removed if the heat is removed at constant pressure during the gas phase. For this problem, use the specific heat (at constant pressure) for water as 1850 J/kg∘C , the latent heat of vaporization as 2.256×106 J/kg , the specific heat of liquid water as 4186 J/kg∘C , the...
How much heat is required to change m=1kg of ice at -6°C into water at 60°C?...
How much heat is required to change m=1kg of ice at -6°C into water at 60°C? cw= 4190 J/kg*K (specific heat of water), Lf= 333 kJ/kg (latent heat of fusion of ice), cice= 2100 J/kg*K
The latent heat of vaporization (Lv) is similar to the latent heat of fusion (Lf), except...
The latent heat of vaporization (Lv) is similar to the latent heat of fusion (Lf), except that it relates to boiling rather than melting. For water, Lv = 2.26 x 106 J/kg. .970 kg of steam at 100°C (the boiling point of water) is put in contact with a 13.5 kg piece of metal. The initial temperature of the piece of metal is 70.0°C. When the piece of metal reaches 100°C, .0420 kg of steam has condensed.     a.         How much heat...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT