MEDIUM
12th Maharashtra Board
IMPORTANT
Earn 100

Draw a p-V diagram and explain the concept of positive and negative work. Give one example each.

Important Questions on Thermodynamics

EASY
12th Maharashtra Board
IMPORTANT
When a piece of ice is placed in water at room temperature, the ice melts and water cools down. Why does their temperature change? 
EASY
12th Maharashtra Board
IMPORTANT
Why different objects kept on a table at room temperature do not exchange heat with the table? 
EASY
12th Maharashtra Board
IMPORTANT
Why is it necessary to make a physical contact between a thermocouple and the object for measuring its temperature? 
EASY
12th Maharashtra Board
IMPORTANT
Can you explain the thermodynamics involved in cooking food using a pressure cooker? 
EASY
12th Maharashtra Board
IMPORTANT
Verify that the area under the p-V curve has dimensions of work 
MEDIUM
12th Maharashtra Board
IMPORTANT
Show that the isothermal work may also be expressed as W=nRTlnPiPf
HARD
12th Maharashtra Board
IMPORTANT
Why is the p-V curve for adiabatic process steeper than that for isothermal process?  Explain formation of clouds at high altitude. 
MEDIUM
12th Maharashtra Board
IMPORTANT
When the temperature of a system is increased or decreased in an adiabatic heating or cooling, is there any transfer of heat to the system or from the system?