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Recent questions tagged thermodynamics-kinetics-and-phase-transformations

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GATE XE 2026 | Question: 37
 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...
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GATE XE 2026 | Question: 40
The degrees of freedom of a system with $2$ components and $2$ phases in equilibrium is $\_\_\_\_$ (answer in integer).
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GATE XE 2026 | Question: 42
The equilibrium vacancy concentration in aluminum at $900$ $\mathrm{K}$ is $1.1 \times 10^{-4}$. The enthalpy of formation of vacancies in $\mathrm{kJ}. \mathrm{mol}^{-1}...
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GATE XE 2026 | Question: 43
Three phases, $\alpha, \beta$ and $\mathrm{L}$ are shown in the binary phase diagram below. Identify the correct $\mathrm{G-X}$ (Gibbs free energy vs Composition) plot co...
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GATE XE 2026 | Question: 45
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...
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GATE XE 2026 | Question: 49
Which of the following statements is/are applicable to Fick's second law:Concentration changes with timeSteady state condition prevailsDiffusion is time dependentConcentr...
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GATE XE 2026 | Question: 78
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...
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GATE XE 2026 | Question: 79
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...
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GATE XE 2026 | Question: 81
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...
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GATE XE 2026 | Question: 82
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...
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GATE XE 2026 | Question: 83
A stream of moist air at $101$ $\mathrm{kPa}$ and $25^{\circ} \mathrm{C}$ undergoes a constant pressure process such that its dry bulb temperature increases and specific ...
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GATE XE 2026 | Question: 84
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...
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GATE XE 2026 | Question: 85
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...
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GATE XE 2026 | Question: 86
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...
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GATE XE 2026 | Question: 87
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,...
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GATE XE 2026 | Question: 88
$M \mathrm{~kg}$ 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...
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GATE XE 2026 | Question: 89
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...
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GATE XE 2026 | Question: 93
Consider a single component fluid at saturation conditions having the following properties.Latent heat of vaporization, $h_{f g}=39.6 \times 10^{3} \mathrm{~kJ} / \mathrm...
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GATE XE 2026 | Question: 94
 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...
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GATE XE 2026 | Question: 95
A stream of moist air enters an adiabatic saturator at $45^{\circ} \mathrm{C}$ and $101$ $\mathrm{kPa}$ and leaves as a saturated mixture at $30^{\circ} \mathrm{C}$. Make...
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