Answered: Suppose a woman does 650 J of work and… | bartleby

Related questions

Question

Suppose a woman does 650 J of work and 9250 J of heat is transferred from her into the environment in the process.
What is the change in her internal energy, in joules, assuming she does not consume any food?
AU=
What is her percent efficiency?
n (%) = ||

Expert Solution

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

Six grams of liquid X at 35 degrees Celsius are added to 3 grams of liquid Y at 20 degrees Celsius. The specific heat of liquid X is 2 calories per gram per degrees Celsius, and the specific heat of liquid Y is 1 calorie per gram per degree Celsius. Now imagine that liquid X continues to transfer energy to liquid Y 12 calories at a time. How many total transfers would be required to reach a common temperature? 04 O more than S 02
A refrigerator does 26.0 k) of work while moving 117 kJ of thermal energy from inside the refrigerator. (a) Calculate the refrigerator's coefficient of performance. (b) Calculate the energy it transfers to its environment. kJ
Convert 7.13 ✕ 103 cal to the equivalent number of kilocalories (also known as Calories, used to describe the energy content of food), and joules. (a) kilocalories ?kcal (b) joules ?J
If mass of air in a house is 278.6376kg. And the specific heat of air is 1.0kj/kgK. How much heat energy is needed to heat air by 10K? Use Q=mc∆T
A certain heat engine does 9.5 kJ of work and 8.00 kJ heat transfer occurs to the environment in a cyclical process. (a) What was the heat transfer (in kJ) into this engine? kJ (b) What was the engine's efficiency (in percent)? %
(a) What is the best coefficient of performance for a refrigerator that cools an environment at -28 C and has heat transfer to another environment at 49 ° C? COP, = 3.18 ref (b) How much work must be done for a heat transfer of 4186 kJ from the cold environment? W = 1316.4 kJ (c) What is the cost of doing this if the work costs 10.0 cents per 3.6x10° J (a kilowatt-hour)? Cost in cents = 3.66 (d) How many kJ of heat transfer, Q, occurs into the warm environment? Qn = 1314.5
A heat engine produces 2000 J of work while operating between 210 degrees Celsius and 35 degrees Celsius. How much heat (in J) is withdrawn from the hot source to produce this much of work? (Format of final answer should be 1.00x10^2) and Calculate the efficiency of the engine (in percent).
An object with mass of 100 kg, moving at a speed of 20 m/s, collides with wall and is crushed. Calculate the heat released if it is 30% of the whole impact energy. /Give the answer in [J] /