Thermodynamics ...

A block of steel heated to 100 .c left in a room to to cool . Which of the curves shown in figure represented the correct behaviour?

An ideal monoatomic gas undergoes expansion according to $$P=bV$$,Where 'b' is a constant.Molar heat capacity of gas in the process is

A gas occupies a volume of 10 ltrs at $$27^oC$$.The kevin temperature it should be cooled isobarically to reduce its volume to 0.25 of the initial value is

A monoatomic gas undergoes a thermodynamic process $${p^2} = cT$$ where $$c$$ is a constant. Molar heat capacity of the gas for this process is 

The volume of a poly-atomic gas $$\left( {y = \dfrac{4}{3}} \right)$$ compressed adiabatically to $$\dfrac{1}{{{8^{th}}}}$$  of the orignal volume. if the orignal pressure of the gas is  $${p_0}$$ the new pressure will be:

the volume of a gas expands by 0.25 $${m^3}$$ at  a constant pressure of $${10^3}N/{m^2}$$. The work done is equal to 

A polytropic process for an ideal gas is represented by equation $$=PV^n$$ constant. If $$\gamma $$ is ratio of specific heats $$(\frac {C_p} {C_v})$$ . then value of n for which molar heat capacity of the process is negative, is given as

One mole of an ideal gas at a temperature $$T_1 K$$ expands slowly according to the law $$\dfrac{P}{V}=$$ constant. Its final temperature is $$T_2 K.$$ The work done by the gas is:

P-V diagram of an ideal gas is as shown in figure. work done by the gas the process ABCD is:

The temperature below which a gas cannot be liquefied is called