Mdcat Smash Test Session

Name:

Two systems are in thermal equilibrium. The quantity which is common for them is

• Temperature
• Specific heat
• Momentum
• Heat

A gas in an insulated cylinder is compressed rapidly and its internal energy increases by 25 J. Work done during this process is

• 25J
• –25 J
• 50J
• –50 J

A thermodynamics system undergoes a process in which its internal energy decreases by 100 J and at the same time 120 J work is done on the system. Heat transfer is

• 20J
• –220 J
• 220 J
• –20 J

The work done on the system is taken as

• Zero
• Negative
• Same
• Positive

In which process the P–V indicator diagram is straight line parallel to volume axis?

• Isobaric
• Adiabatic
• Isothermal
• Isochoric

If 315cal of heat is given to the system, and the system does 20cal of work, find the change in internal energy.

• 335J
• 295cal
• 335cal
• 0J

CV of a gas is 8 calK -1mol-1 . Find CP/CV. Assume R = 2 calK -1mol-1

• 1.8
• 1.4
• 1.25
• 1.33

In Which process all the heat supplied is converted into work done?

• Isothermal
• Isochoric
• Isobaric
• Isentropic

Four students found set of CP and CV (in cal/deg mole) as given below. Which of the following set is correct?

• CP=5,CV=3
• CV=3,CP=3
• CV=2,CP=1
• CV=4,CP=2