Question

Water is being heated to increase its temperature by 50oF. Which situation requires the most heat?...

Water is being heated to increase its temperature by 50oF. Which situation requires the most heat?

Heating from 40oF to 90oF
Heating from 20oF to 70oF
Heating from 150oF to 200oF
Heating from 100oF to 150oF
There is no difference as it is a 50oF rise in each case
Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Option E is the answer

This is because boiling point of water in °F is 212°F

At this temperature , the best supplied doesn't increase the temperature but is used to break the intermolecular forces of interaction and hence at this transition temperature maximum heat is provided to raise the temperature from 50°

But here these changes are taking place below the boiling point and therefore it doesn't matter as the difference is 50° in all cases.

Also C=Q/m ∆T

C is specific heat and q is heat , m is mass and ∆T is change in temperature. C is same , m is same and ∆T is same therefore q will also be same .

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 major advantage of a "smart" grid over today's electrical grid is... that it connects power...
A major advantage of a "smart" grid over today's electrical grid is... that it connects power plants via high voltage transmission lines for redundancy that it allows for micro-grids that can share resources that it provides backup power in the form of additional power plants that it uses high voltage transformers to transmit power long distances Water is being heated to increase its temperature by 50oF. Which situation requires the most heat? Heating from 150oF to 200oF Heating from 100oF...
1. A flask containing 800 g. of water is heated. If the temperature of the water...
1. A flask containing 800 g. of water is heated. If the temperature of the water increases from 20 degrees Celsius to 85 degrees Celsius, how much heat (in joules) did the water absorb? 2. How much heat, in joules, and in calories, must be added to a 75 g. iron block with a specific heat of 0.451 J/g degree Celsius to increase its temperature from 25 degrees Celsius to its melting temperature of 1535 degrees Celsius? 3. Consider sound...
You have a 60 gallon hot water tank at home that is heated at 60oC. Hot...
You have a 60 gallon hot water tank at home that is heated at 60oC. Hot water is taken from the tank and mixed with the required amount of water at 10oC to supply a hot shower using 8 L/s of water that is at 45oC. How big of a heating element is required in the tank to keep its temperature constant at 60oC. Assume that 5% of the heat is lost to the environment
What is the increase in entropy if 14 mol of N_2 are heated from 20.0◦C to...
What is the increase in entropy if 14 mol of N_2 are heated from 20.0◦C to 30.0◦C at constant pressure, assuming nitrogen behaves as an ideal gas? (b) A kettle holds 1.50 kg of water. Calculate the internal energy increase of the water as its temperature increases from 20.0◦C to 90.0◦C. The specific heat capacity of water is 4.18 kJ kg −1.
An air-water vapor mixture containing 20% ​​humidity at a dry thermometer temperature of 40 ° C...
An air-water vapor mixture containing 20% ​​humidity at a dry thermometer temperature of 40 ° C A tunnel is fed to the dryer by being heated to 70 ° C. Red pepper samples It is dried in adiabatic conditions. Leave the dryer system saturated For the mixing air-water vapor mixture, find the following. a) 10000 m3 of moist air at 40 ° C (air-water vapor mixture) warmth Required heat to increase to 70 ° C b) Air temperature at dryer...
Which of the following would release the most heat? Assume the same mass of in each...
Which of the following would release the most heat? Assume the same mass of in each case. Specific heats of ice, liquid water, and water vapor are 2.05 J/(g⋅°C), 4.18 J/(g⋅°C), and 2.01 J/(g⋅°C) respectively, the heat of fusion of ice is 6.01 kJ/mol, the heat of vaporization of water is 40.7 kJ/mol. (Please show your work) a. Heating the H2) sample from –14°C to 58°C. b. Cooling the H2O sample from 18°C to –2.3°C. c. Cooling the sample from...
How much heat is required to increase the temperature of 85.44 g of water from −18.6...
How much heat is required to increase the temperature of 85.44 g of water from −18.6 °C to 33.4 °C? NOTE H2O (s) → H2O (l) ΔH°fusion, water = 6.02 kJ/mol Specific Heat Capacities: cwater (l) = 4.186 J·g-1·°C-1 cwater (s) = 2.056 J·g-1·°C-1
150 grams of boiling water (temperature 100°C, heat capacity 4.2 J/gram/K) are poured into an aluminum...
150 grams of boiling water (temperature 100°C, heat capacity 4.2 J/gram/K) are poured into an aluminum pan whose mass is 970 grams and initial temperature 25°C (the heat capacity of aluminum is 0.9 J/gram/K). (a) After a short time, what is the temperature of the water? (b) What simplifying assumptions did you have to make? The thermal energy of the aluminum doesn't change. Energy transfer between the system (water plus pan) and the surroundings was negligible during this time. The...
How much heat must be supplied to a 500 g iron pan to increase its temperature...
How much heat must be supplied to a 500 g iron pan to increase its temperature from 20 OC to 100 OC. The specific heat of iron is c= 0.11 cal/g/OC
Heat transfer from solid to liquid: 1. An experiment is being performed. 500g of cold water...
Heat transfer from solid to liquid: 1. An experiment is being performed. 500g of cold water is poured into a calorimeter. The temperature is measured to be 13.2 degrees celsius. Then, 300 mL of hot water is poured into a beaker and a 500g metal mass or aluminum bar is placed in it. The temperature of the hot water/metal mass is 64.5 degrees celsius. The block is moved from the hot water into the cold water. The final temperature is...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT