Which of the following is the best example of the Zeroth Law of Thermodynamics?
Heat flows from a hotter body to a colder body.
If two systems are each in thermal equilibrium with a third system, then they are in thermal equilibrium with each other.
Energy can neither be created nor destroyed, only transferred or changed from one form to another.
It is impossible to reach absolute zero in a finite number of steps.
Related Questions
Which of the following is the best example of the Zeroth Law of Thermodynamics?
Heat flows from a hotter body to a colder body.
If two systems are each in thermal equilibrium with a third system, then they are in thermal equilibrium with each other.
Energy can neither be created nor destroyed, only transferred or changed from one form to another.
It is impossible to reach absolute zero in a finite number of steps.
A body cools from 50°C to 40°C in 5 minutes. The surrounding temperature is 20°C. In the next 5 minutes, it will cool approximately to:
33.33°C
35°C
36.67°C
32°C
A solid sphere and a hollow sphere of the same material and radius are heated to the same temperature and allowed to cool in the same environment. Which sphere will have a higher initial rate of cooling?
Solid sphere
Hollow sphere
Both will cool at the same rate
Insufficient information
Two different metallic rods of the same length have their ends kept at the same temperatures and with . If and are their cross-sectional areas, and their thermal conductivities, the rate of heat flow is the same in both the rods. The condition for this is:
K₁A₁ = K₂A₂
K₁A₂ = K₂A₁
K₁/A₁ = K₂/A₂
A₁/A₂=K₁/K₂
A lead bullet of 10 g travelling at strikes against a block of wood and comes to rest. Assuming of heat is absorbed by the bullet, the increase in its temperature is (specific heat of lead
Which unit is NOT a unit of temperature?
Kelvin
Celsius
Fahrenheit
Joule
A bimetallic strip, made of materials with different coefficients of thermal expansion, bends when heated. This bending is primarily due to:
Change in the mass of the metals
Change in the specific heat of the metals
Unequal expansion of the two metals
Phase change in one of the metals
If object A is in thermal equilibrium with object B, and object B is in thermal equilibrium with object C, what can be said about the temperatures of objects A and C?
The temperature of A is higher than C.
The temperature of C is higher than A.
They are the same.
There is not enough information to determine.
An electric immersion heater of 1.08 kW is immersed in water. After the water has reached a temperature of , how much time will be required to produce 100 g of steam
210 s
105 s
420 s
50 s
