Kinetic Theory & Thermodynamics Test

Result

Kinetic Theory & Thermodynamics Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

A system is taken from a given initial state to a given final state along different paths. The quantity that is independent of the path is

A
none of these

B
Q – W

C
amount of work done W

D
amount of heat transferred Q

Solution

In a thermodynamic process, internal energy is a state function and does not depend on the path.

And Q - W = ΔE
Question 2
1 / -0

Statement-1: Carnot cycle is useful in understanding the performance of heat engines.

Statement-2: Carnot cycle provides a way of determining the maximum possible efficiency achievable with reservoirs at given temperatures.

A
Both Statement-1 and Statement-2 are true and Statement-2 is the correct explanation of Statement-1.

B
Both Statement-1 and Statement-2 are true and Statement-2 is not the correct explanation of Statement-1.

C
Statement-1 is true but Statement-2 is false.

D
Statement-1 is false but Statement-2 is true.

Solution

Carnot cycle represents the process of an "ideal” heat engine, which has maximum efficiency in conversion of heat energy into mechanical energy. So Statement-I is correct. Efficiency of a Carnot cycle depends only on the temperature of heat reservoirs ( Source and Sink ). So reason is right and reason explains assertion.