WC1_3 April

Multiple Choice

Heat does not spontaneously flow from a colder body to a hotter one. Which of the following thermodynamics law states this?

• Zeroth law of thermodynamics

• First law of thermodynamics
  

• Second law of thermodynamics

• Third law of thermodynamics

Multiple Choice

1. Match the following:

2. a) Adiabatic Process   i) no volume change takes place

3. b) Isochoric Process   ii) no pressure change takes place.

4. c) Isobaric Process   iii) no temperature change takes place.

5. d) Isothermal Process   iv) no heat transfer takes place.

• 1. a)-iv b) iii c) ii d) i

• 1. a)-i b) iv c) ii d) iii

• 1. a)-iv b) i c) ii d) iii

• 1. a)-i b) ii c) iii d) iv

Multiple Choice

Coefficient of performance(COP) is defined as

• heat leakage/work input
  

• work input/heat leakage

• latent heat of condensation/work input

• work input/latent heat of condensation

Draw

Draw PV diagram for Carnot cycle?

Multiple Choice

If a gas of volume 30m³ is contained in a rigid container and 60J of heat is provided to it. Then, calculate the change in internal energy. Assume that the gas exerts 1atm of pressure on the walls.

• 40J

• 0

• 60 J

• 80 J