# UNIT VIII: Heat and Thermodynamics - Online Test

Q1. In hot summer after a bath, the body’s
Explaination / Solution:
No Explaination.

Q2. The graph between volume and temperature in Charles’ law is
Explaination / Solution:
No Explaination.

Q3. When a cycle tyre suddenly bursts, the air inside the tyre expands. This process is
Explaination / Solution:
No Explaination.

Q4. An ideal gas passes from one equilibrium state (P1, V1, T1, N) to another equilibrium state (2P1, 3V1, T2, N). Then
Explaination / Solution:
No Explaination.

Q5. When a uniform rod is heated, which of the following quantity of the rod will increase
Explaination / Solution:
No Explaination.

Q6. When food is cooked in a vessel by keeping the lid closed, after some time the steam pushes the lid outward. By considering the steam as a thermodynamic system, then in the cooking process
Explaination / Solution:
No Explaination.

Q7. When you exercise in the morning, by considering your body as thermodynamic system, which of the following is true?
Explaination / Solution:
No Explaination.

Q8. A hot cup of coffee is kept on the table. After some time it attains a thermal equilibrium with the surroundings. By considering the air molecules in the room as a thermodynamic system, which of the following is true
Explaination / Solution:
No Explaination.

Q9. An ideal gas is taken from (Pi,Vi) to (Pf,Vf) in three different ways. Identify the process in which the work done on the gas the most.

Explaination / Solution:
No Explaination.

Q10. The V-T diagram of an ideal gas which goes through a reversible cycle A→B→C→D is shown below. (Processes D→A and B→C are adiabatic)

The corresponding PV diagram for the process is (all figures are schematic)

Explaination / Solution:
No Explaination.