Question

.A PV diagram plots the change in pressure P with respect to volume V for some process or processes. Typically in thermodynamics, the set of processes forms a cycle, so that upon completion of the cycle there has been no net change in state of the system; i.e. the device returns to the starting pressure and volume.
The figure shows the features of an idealized PV diagram. It shows a series of numbered states (1 to 4). The path between each state consists of some process (A to D) which alters the pressure or volume of the system (or both).

.
Work done in PV diagram for process A will be

a)Positive b) negative c)can be positive or negative d)can’t say anything

First law of thermodynamics expression is

a)Q= U+W b)U = Q +W c) W =U +Q d)None of these

Area calculated under the PV diagram will give us

a)Work b) internal energy c)heat supplied d)none of these

4.The part B of the diagram represents
a)isobaric process b)isochoric process c) Isothermal expansion d)Adiabatic expansion

5. If the temperature of the ideal gas decreases then its internal energy
a) Decreases b) increases c) no change d) none of these​

Answer 1

Answer:

true

Explanation:

answer is true ( yes)

Answer 2

Answer:

no not correct jsbsjejshws