Scelta multipla
Which type of heat transfer is primarily responsible for enabling hot air balloons to fly?
161
views
20. Heat and Temperature
Heat Transfer
Scelta multipla
In the context of heat transfer, how does heat flow between two objects?
A
Heat flows spontaneously from an object at higher temperature to an object at lower temperature .
B
Heat flows spontaneously from an object at lower temperature to an object at higher temperature .
C
Heat flows equally in both directions regardless of temperature difference .
D
Heat does not flow between objects of different temperatures .
Guida verificata passo dopo passo1
Understand the concept of heat transfer: Heat is energy that flows due to a temperature difference between two objects or systems.
Identify the temperatures of the two objects, denoted as \(T_1\) and \(T_2\), where \(T_1\) and \(T_2\) represent the temperatures of object 1 and object 2 respectively.
Recognize that heat flows spontaneously from the object at the higher temperature to the object at the lower temperature. This means if \(T_1 > T_2\), heat will flow from object 1 to object 2.
Note that the direction of heat flow is driven by the temperature difference \(\Delta T = T_1 - T_2\), and heat will not flow from a colder object to a hotter object without external work.
Conclude that heat does not flow equally in both directions and it always moves to reduce the temperature difference, moving from higher to lower temperature until thermal equilibrium is reached.
Video correlati
Pratica correlata
