A small container full of water is isolated from its surrounding. The water is then vigorously stirred with a paddle wheel. What can we say about this situation? A. The internal energy of the water remains constant as no heat is allowed to flow. B. The stirring generates heat. C. The internal energy is increased because work is done on the water. D. The water cools down, like when a fan cools a room. Follow-up: What happens to the temperature? A: It increases, B: It decreases, C: It says the same

A small container full of water is isolated from its surrounding. The water is then vigorously stirred with a paddle wheel. What can we say about this situation? A. The internal energy of the water remains constant as no heat is allowed to flow. B. The stirring generates heat. C. The internal energy is increased because work is done on the water. D. The water cools down, like when a fan cools a room. Follow-up: What happens to the temperature? A: It increases, B: It decreases, C: It says the same

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)...

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Concept explainers

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.

Question

A small container full of water is isolated
from its surrounding. The water is then
vigorously stirred with a paddle wheel.
What can we say about this situation?
A. The internal energy of the water remains constant as no heat
is allowed to flow.
B. The stirring generates heat.
C. The internal energy is increased because work is done on the
water.
D. The water cools down, like when a fan cools a room.
Follow-up: What happens to the temperature?
A: It increases, B: It decreases, C: It says the same

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