A fish at a pressure of 1.1 atm has its swim bladder inflated to an initial volume of 8.16 mL. If the fish starts swimming horizontally, its temperature increases from 20.0°C to 22.0°C as a result of the exertion. (a) Since the fish is still at the same pressure, how much work is done by the air in the swim bladder? (b) How much heat is gained by the air in the swim bladder? Assume air to be a diatomic gas. (c) If the fish stops and this quantity of heat is lost, by the fish to the water at 20.0°C, how much is the fish and the universe (fish + water) entropy variation?

A fish at a pressure of 1.1 atm has its swim bladder inflated to an initial volume of 8.16 mL. If the fish starts swimming horizontally, its temperature increases from 20.0°C to 22.0°C as a result of the exertion. (a) Since the fish is still at the same pressure, how much work is done by the air in the swim bladder? (b) How much heat is gained by the air in the swim bladder? Assume air to be a diatomic gas. (c) If the fish stops and this quantity of heat is lost, by the fish to the water at 20.0°C, how much is the fish and the universe (fish + water) entropy variation?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

Question 4. A 5.0 kg block of aluminium is heated from 20°C to 90°C at atmospheric pressure. Find (a) the work done by the aluminium, (b) the amount of energy transferred to it by heat, and (c) the increase in internal energy.
A small office building with well-insulated walls and containing 600 m3 of air at 305 K is heated at constant pressure (atmospheric). Consider air to be an ideal diatomic gas. (a) Determine the energy (in kJ) required to increase the temperature of the air in the building by 1.70°C.(b) Determine the mass (in kg) this amount of energy could lift through a height 2.30 m.
Three moles of a monatomic ideal gas are heated at a constant volume of 2.01 m³. The amount of heat added is 5.40 x 103 J. (a) What is the change in the temperature of the gas? (b) Find the change in its internal energy. (c) Determine the change in pressure. (a) Number i (b) Number i (c) Number i Units Units Units
You have a spherical heater, outside diameter = 3.40 cm, immersed in a container of water. In order to keep the water in the container heated to a constant temperature of 35.0°C you adjust the temperature of the spherical heater. You reach a steady-state condition when the surface temperature of the spherical heater is at 79.0°C. Assuming the electrical efficiency of the heater is 100.0%, calculate the power required by the heater (i.e., calculate q). Ignore radiation.
An ISOBARIC process is one in which the PRESSURE REMAINS CONSTANT. Answer the following questions regarding the isobaric process.
The first law of thermodynamics, ΔU = Q - W, when written as Q = W + ΔU, says that the heat into a system can be used to do work and/or increase the internal energy. Therefore, which process requires the most heat? Isobaric, isochoric, or adiabatic?
A container holding 4.20 kg of water at 20.0°C is placed in a freezer that is kept at -20.0°C. The water freezes and comes to thermal equilibrium with the interior of the freezer. What is the minimum amount of electrical energy required by the freezer to do this if it operates between reservoirs at temperatures of 20.0°C and –-20.0°C? (Latent heat of fusion of ice = capacity of water = 4186 J/(kg K), specific heat capacity of ice = 2100 J/(kg K)). 333,700 J/ kg, specific heat kJ