A cup of water at \( 5^\circ \text{C} \) (system) is placed in a microwave oven and the oven is turned on for one minute during which the water begins to boil. Which of the following option is true?
\( q = +\,\text{ve},\ w = -\,\text{ve},\ \Delta U = +\,\text{ve} \)
\( q = +\,\text{ve},\ w = 0,\ \Delta U = -\,\text{ve} \)
\( q = -\,\text{ve},\ w = -\,\text{ve},\ \Delta U = -\,\text{ve} \)
\( q = +\,\text{ve},\ w = -\,\text{ve},\ \Delta U = -\,\text{ve} \)
Match the LIST-I with LIST-II:
Choose the correct answer from the options given below:
Match List - I with List - II.
Choose the correct answer from the options given below :
Given below are two statements:Statement I: For an ideal gas, heat capacity at constant volume is always greater than the heat capacity at constant pressure.Statement II: In a constant volume process, no work is produced and all the heat withdrawn goes into the chaotic motion and is reflected by a temperature increase of the ideal gas.In the light of the above statements, choose the correct answer from the options given below
Which of the following graphs between pressure ‘\( p \)’ versus volume ‘\( V \)’ represents the maximum work done?
Consider the reaction \( \text{X} \rightleftharpoons \text{Y} \) at \( 300 \, \text{K} \). If \( \Delta H^\theta \) and \( K \) are \( 28.40 \, \text{kJ} \, \text{mol}^{-1} \) and \( 1.8 \times 10^{-7} \) at the same temperature, then the magnitude of \( \Delta S^\theta\) for the reaction in \( \text{J K}^{-1} \text{ mol}^{-1} \) is ________ (Nearest integer)(Given : \( R = 8.3 \, \text{J K}^{-1} \, \text{mol}^{-1} \), \( \ln 10 = 2.3 \), \( \log 3 = 0.48 \), \( \log 2 = 0.30 \))
Use the following data:One mole each of A\(_2\)(g) and B\(_2\)(g) are taken in a \( 1 \) L closed flask and allowed to establish the equilibrium at \( 500 \) K.\( \mathrm{A_2(g) + B_2(g) \rightleftharpoons 2\,AB(g)} \)The value of \( x \) (in \( \mathrm{kJ\,mol^{-1}} \)) is __________. (Nearest Integer)(Given: \( \log K = 2.2 \) \( R = 8.3 \\ \mathrm{J\,K^{-1}\,mol^{-1}} \))
For the reaction, $\text{N}_2\text{O}_4 \rightleftharpoons 2\text{NO}_2$, graph is plotted as shown below. Identify correct statements.
A. Standard free energy change for the reaction is $-5.40\text{ kJ mol}^{-1}$.B. As $\Delta G^{\ominus}$ in graph is positive, $\text{N}_2\text{O}_4$ will not dissociate into $\text{NO}_2$ at all.C. Reverse reaction will go to completion.D. When 1 mole of $\text{N}_2\text{O}_4$ changes into equilibrium mixture, value of $\Delta G^{\ominus} = -0.84\text{ kJ mol}^{-1}$.E. When 2 mole of $\text{NO}_2$ changes into equilibrium mixture, $\Delta G^{\ominus}$ for equilibrium mixture is $-6.24\text{ kJ mol}^{-1}$.
