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Class XI Physics Thermodynamics 1
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Question 1
Molten SiO2 shows differ properties in 1000 oC 1 atm and 1700 oC 1 atm
Question 2
How much the mass of ice required to lower the temperature of 300 gm of water at 40 0C to 0 0C.
Specific latent heat of ice = 336 J/g and specific heat capacity of water = 42 J/g 0C.
Question 3
The use of heat pumps that extract energy from the air is not appropriate in areas where winter temperatures are very low
Question 4
At point A one mole of monatomic ideal gas in ideal heat engine at point a TA = TB Expands isothermally to B and isochorically to C change in entropy from B to C is given by
Question 5
The temperature of an open room of volume 30 m3 increases from 
due to the sunshine. The atmospheric pressure in the room remains 1×105 Pa. If 
are the number of molecules in the room before and after heating, then 
will be:
due to the sunshine. The atmospheric pressure in the room remains 1×105 Pa. If are the number of molecules in the room before and after heating, then will be: Question 6
Which of the following relationship is incorrect for isothermal and adiabatic expansion?
Question 7
In a process, dw=0 and dq <0 for an ideal gas. Which of the following is correct for that gas?
Question 8
A cyclic heat engine does 50kJ of work per cycle. If efficiency of engine is 75%, the heat rejected per cycle will be
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Oct 30JEE & BITSAT
