Questions without answers in Thermodynamics

 The plot shows three different paths ($1,2,$ and $3$) connecting the initial equilibrium state $\text{X}$ to the final equilibrium state $\text{Y}$ in a thermodynamic pr...

Match the Thermodynamic laws in Column $\text{I}$ with the description given in Column $\text{II}$${\text{Column I}}$${\text{Column II}}$$\text{P}$Zeroth law$1$Entropy of...

Consider any substance whose mass specific heat capacity at constant pressure and mass specific heat capacity at constant volume are $c_{P}$ and $c_{V}$, respectively. If...

Consider a mixture of ideal gases, nitrogen $\left(\mathrm{N}_{2}\right)$ and carbon-dioxide $\left(\mathrm{CO}_{2}\right)$, at $25^{\circ} \mathrm{C}$ and $101$ $\mathrm...

In a mixing chamber hot water enters at a temperature of $80^{\circ} \mathrm{C}$ with a flowrate of $0.5 \mathrm{~kg} / \mathrm{s}$. From another entry, cold water enters...

Which ONE of the following statements is CORRECT?For an ideal gas, specific enthalpy ( $h$ ) is a function of both temperature and pressure.Internal energy $(U)$, entropy...

A mixture of carbon-dioxide ( $\mathrm{CO}_{2}$ ), nitrogen ( $\mathrm{N}_{2}$ ) and oxygen ( $\mathrm{O}_{2}$ ) are introduced in a rigid and impermeable tank containing...

Which of the following is/are example(s) of a pure substance at $25^{\circ} \mathrm{~C}$ and $101$ $\mathrm{kPa}$?Gaseous oxygenMixture of liquid water and water vaporMix...

A house looses heat at a rate of $150$ $\mathrm{MJ}$ per hour. The temperature outside the house is $-3{ }^{\circ} \mathrm{C}$. The minimum power (in $\mathrm{kW}$) requi...

Consider an ideal Otto-cycle with cold-air-standard assumptions to be applicable. The temperature of the working fluid at the start and the end of the compression process...

Consider a real gas, which obeys the following equation-of-state:$$v=\dfrac{R T}{P}+C_{1}-\dfrac{C_{2}}{P v},$$where $v$ is the mass specific volume, $P$ is the pressure,...

$M \mathrm{~kg}$ of a liquid at a temperature $T_{1}$ is mixed with $M \mathrm{~kg}$ of the same liquid at another temperature $T_{2}$ in an isolated tank at constant pre...

A fluid undergoes a process where its pressure $(P)$, temperature $(T)$ and volume $(V)$ changes from $\left(P_{1}, T_{1}, V_{1}\right)$ to $\left(P_{2}, T_{2}, V_{2}\rig...

Consider an ideal Rankine cycle with fixed conditions at the turbine inlet. If the condenser pressure is lowered, which of the following statements is/are CORRECT?Pump wo...

 An adiabatic rigid and impermeable tank of volume $10 \mathrm{~m}^{3}$ contains air at $800$ $\mathrm{kPa}$ and $70^{\circ} \mathrm{C}$. The air is allowed to leave the ...

 Two $\mathrm{kg}$ of a gas is compressed in a process. Pressure $(P)$ and mass specific volume $(v)$ of the gas during the process follows: $P v^{1.2}=$ constant. The te...

 It is given that: $\left(\dfrac{\partial h}{\partial T}\right)_{P}=c_{p}$ and $\left(\dfrac{\partial h}{\partial P}\right)_{T}=(v-\beta T v)$. Here $h$ is the mass speci...

Consider an ideal Diesel-cycle with cold-air-standard assumptions to be applicable. The compression ratio is $20$ and the cut-off ratio is $1.8$. At the end of the compre...

A mixture of helium $\text{(He)}$ and nitrogen ($\mathrm{N}_{2}$) expands in a turbine from $800$ $\mathrm{kPa}$ to $100$ $\mathrm{kPa}$. The mixture composition is $40\%...

A rigid and impermeable tank has only moist air with a specific humidity of $0.025 \mathrm{~kg}_{\text {water-vapor }} / \mathrm{kg}_{\text{dry-air}}$ at $30^{\circ} \mat...