New chat PYQ Library Doubts Rank report

Sign in to see Recents

Sign in to save progress →

Thermodynamics question

2023 · Shift 2 · Q15

Guest · try one question or challengeGuest · try one question or challenge

PYQ Library
JEE Advanced
Chemistry
Thermodynamics
2023 · Shift 2 · Q15

Thermodynamics question

2023 · Shift 2 · Q15

JEE AdvancedChemistryThermodynamicsNumerical+3 / −1

The entropy versus temperature plot for phases

\alpha

and

\beta

at 1 bar pressure is given.

S_{\mathrm{T}}

and

S_0

are entropies of the phases at temperatures

\mathrm{T}

and

0 \mathrm{~K}

, respectively. JEE Advanced 2023 Paper 2 Online Chemistry - Thermodynamics Question 4 English Comprehension

JEE Advanced 2023 Paper 2 Online Chemistry - Thermodynamics Question 4 English Comprehension

The transition temperature for

\alpha

to

\beta

phase change is

600 \mathrm{~K}

and

C_{\mathrm{p}, \beta}-C_{\mathrm{p}, \alpha}=1 \mathrm{~J} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}

. Assume

\left(C_{\mathrm{p}, \beta}-C_{\mathrm{p}, \alpha}\right)

is independent of temperature in the range of 200 to

700 \mathrm{~K} . C_{\mathrm{p}, \alpha}

and

C_{\mathrm{p}, \beta}

are heat capacities of

\alpha

and

\beta

phases, respectively.

\text { The value of enthalpy change, } \mathrm{H}_\beta-\mathrm{H}_\alpha \text { (in } \mathrm{J} \mathrm{mol}^{-1} \text { ), at } 300 \mathrm{~K} \text { is }

\underline{\hspace{2cm}}

.

Numerical answer

More from Thermodynamics

$2 mol of Hg (g)$ is combusted in a fixed volume bomb calorimeter with excess of $O_{2}$ at $298 K$ and 1 atm into $HgO (s)$ . During the reaction, temperature increases…2022 · Numerical
The correct option(s) about entropy (S) is(are) $[R =$ gas constant, $F =$ Faraday constant, $T =$ Temperature $]$ 2022 · Multiple correct
An ideal gas undergoes a reversible isothermal expansion from state I to state II followed by a reversible adiabatic expansion from state II to state III. The correct plot(s) representing the changes from state I to state III is (are) (p :…2021 · Multiple correct
For the reaction, X(s) $⇌$ Y(s) + Z(g), the plot of $ln \frac{p z}{p ^{θ}}$ versus $\frac{10 ^{4}}{T}$ is given below (in solid line), where pz is the pressure (in bar) of the gas Z at temperature T and $p^{θ}$ … Includes diagram2021 · Numerical
For the reaction, X(s) $⇌$ Y(s) + Z(g), the plot of $ln \frac{p z}{p ^{θ}}$ versus $\frac{10 ^{4}}{T}$ is given below (in solid line), where pz is the pressure (in bar) of the gas Z at temperature T and $p^{θ}$ … Includes diagram2021 · Numerical
One mole of an ideal gas at 900 K, undergoes two reversible processes, I followed by II, as shown below. If the work done by the gas in the two processes are same, the value of $ln \frac{V _{3}}{V _{2}}$ is .… Includes diagram2021 · Numerical
In thermodynamics, the p-V work done is given by $w = - \int d V p_{e x t}$ For a system undergoing a particular process, the work done is $w = - \int d V (\frac{R T}{V - b} - \frac{a}{V ^{2}})$ This equation is…2020 · Multiple correct
Tin is obtained from cassiterite by reduction with coke. Use the data given below to determine the minimum temperature (in K) at which the reduction of cassiterite by coke would take place. At $298 K : Δ_{f} H^{\circ} [S n O_{2} (s)] = - 581.0$ …2020 · Numerical