HQ11.13 Homework Unanswered The air in an inflated balloon (the system) absorbs 2 kJ of heat...

Question

Question

HQ11.13 Homework Unanswered The air in an inflated balloon (the system) absorbs 2 kJ of heat from its proximity to a fire. Th

Answer 1

Answer #1

From first law of thermodynamics,

∆U = w + q

w = -85 kJ

q = 2 kJ

∆U= -85+2

=> -83 kJ

Numeric answer = 83 kJ

Answer 2

Similar Homework Help Questions

Heat and Work UE:6 days Assigned as tomewor HQ5.15 The air in an inflated balloon (the...

Heat and Work UE:6 days Assigned as tomewor HQ5.15 The air in an inflated balloon (the system) absorbs 125 J of heat from its proximity to a fire. The balloon expands and does 85 kJ of work. What is the change in internal energy (in (AU) for the system? (Do not include units in your answer) Numeric Answer 2 attempts left Unanswered 3:14 PM OeO 22018 DOLL
1. The air in an inflated balloon (defined as the system) is warmed over a toaster...

1. The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 115 J of heat. As it expands, it does 75 kJ of work. What is the change in internal energy for the system? Express the energy in kilojoules to two significant figures.
part a. The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 110 J of heat. As it...

part a. The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 110 J of heat. As it expands, it does 79 kJ of work. What is the change in internal energy for the system? Express the energy in kilojoules to two significant figures. part b. When fuel is burned in a cylinder equipped with a piston, the volume expands from 0.235 L to 1.350 L against an external pressure of 1.02 atm...

1.) A system absorbs 1.56E+2 kJ of heat and the surroundings do 1.107E+2 kJ of work...

1.) A system absorbs 1.56E+2 kJ of heat and the surroundings do 1.107E+2 kJ of work on the system. What is the change in internal energy (in kJ) (ΔU) of the system? 2.) A sample of gas in a cylinder is provided with 6.221E+2 kJ of heat. This causes a piston to then compresses the gas by doing 4.343E+2 kJ of work to the gas. What is the change in internal energy of the gas during this compression? 3.)A gas...
A system absorbs 187 kJ of heat and the surroundings do 120 kJ of work on...

A system absorbs 187 kJ of heat and the surroundings do 120 kJ of work on the system. What is the change in internal energy of the system? Express the internal energy in kilojoules to three significant figures.
A system absorbs 196 kJ of heat and the surroundings do 117 kJ of work on...

A system absorbs 196 kJ of heat and the surroundings do 117 kJ of work on the system. Calculate the change in internal energy of the system.

What is the change in internal energy (in J) of a system that absorbs 0.297 kJ...

What is the change in internal energy (in J) of a system that absorbs 0.297 kJ of heat from its surroundings and has 0.750 kcal of work done on it? Give your answer in scientific notation. × 10,
What is the change in internal energy (in J) of a system that absorbs 0.106 kJ...

What is the change in internal energy (in J) of a system that absorbs 0.106 kJ of heat from its surroundings and has 0.758 kcal of work done on it? Give your answer in scientific notation. × 10 J?
If a system absorbs 44 kJ of energy and does 13 kJ of work on the...

If a system absorbs 44 kJ of energy and does 13 kJ of work on the surroundings, calculate the change in internal energy of the system in kJ. For your answer, only type in the numerical value with two significant figures. Do NOT include the unit (kJ).

A system absorbs 21.6 kJ of heat while performing 6.9 kJ of work on the surroundings....

A system absorbs 21.6 kJ of heat while performing 6.9 kJ of work on the surroundings. If the initial internal energy, E, is 61.2 kJ, what is the final value of E? [ NOTE: Remember “∆” = final – initial]