MCQ
Davisson and Germer's experiment showed that
- A$\beta $-particles are electrons
- BElectrons come from nucleus
- ✓Electrons show wave nature
- DNone of the above
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a $20\ L$ box containing $X_6$ and $X_3$ at equilibrium at $1500\ K$ . $K_p = 4 \times 10^{18}\ atm$ . Assuming ${P_{{x_3}}} > > {P_{{x_6}}}$ and total pressure is $10\ atm$ .The partial pressure of $X_6$ will be

| Column $I$ | Column $II$ |
| $(A)$ Freezing of water at $273 K$ and $1 \ atm$ | $(P)$ $q =0$ |
| $(B)$ Expansion of $1 \ mol$ of an ideal gas into a vacuum under isolated conditions | $(Q)$ $w=0$ |
| $(C)$ Mixing of equal volumes of two ideal gases at constant temperature and pressure in an isolated container | $(R)$ $\Delta S _{\text {sy5 }} < 0$ |
| $(D)$ Reversible heating of $H _2( g )$ at $1 \ atm$ from $300 \ K$ to $600 \ K$, followed by reversible cooling to $300 \ K$ at $1 \ atm$ | $(S)$ $\Delta U =0$ |
| $(T)$ $\Delta G =0$ |