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Why does PH3 have a higher vapor pressure then NH3?
PH3 has a higher vapor pressure than NH3 due to the larger size and greater molecular weight of phosphorus compared to nitrogen. This results in weaker van der Waals forces between PH3 molecules, allowing them to escape and become a gas more easily than NH3 molecules.
Why is bond angle in ph3 less than that in nh3?
Both PH3 and NH3 have 3 bonding pairs and 1 lone pair of electrons around the central atom, and so are both trigonal pyramidal in shape. The bond angle in NH3 is less than 109.5º and that in PH3 is less than that in NH3 (maybe around 109º). The reason for this has to due with electronegativity. The N atom is more electronegative than the P atom and thus electron density of N's bonding electrons are closer to the N, and so they exert a greater repulsion on each other. This greater repulsion compared to that seen PH3 makes the bond angle slighter greater in NH3. P being less electronegative than N doesn't draw it's electrons as close so they don't repel as much.
Is pH 4 stronger than pH3?
No, a lower pH value indicates a stronger acid. Therefore, pH 3 is stronger than pH 4.
Which compound is more like an ionic compound NH3 or PH3?
NH3 is more like an ionic compound compared to PH3 because ammonia (NH3) displays some characteristics of ionic bonding due to its ability to accept and donate protons, while phosphine (PH3) has predominantly covalent bonding due to similar electronegativities of phosphorus and hydrogen.
Which acids would be stronger pH3 or pH5?
The lower the pH value, the stronger the acid. Therefore, pH 3 is stronger than pH 5. pH 3 has a higher concentration of hydrogen ions, making it a more acidic solution than pH 5.
Why does PH3 have a higher vapor pressure then NH3?
PH3 has a higher vapor pressure than NH3 due to the larger size and greater molecular weight of phosphorus compared to nitrogen. This results in weaker van der Waals forces between PH3 molecules, allowing them to escape and become a gas more easily than NH3 molecules.
Why is bond angle in ph3 less than that in nh3?
Both PH3 and NH3 have 3 bonding pairs and 1 lone pair of electrons around the central atom, and so are both trigonal pyramidal in shape. The bond angle in NH3 is less than 109.5º and that in PH3 is less than that in NH3 (maybe around 109º). The reason for this has to due with electronegativity. The N atom is more electronegative than the P atom and thus electron density of N's bonding electrons are closer to the N, and so they exert a greater repulsion on each other. This greater repulsion compared to that seen PH3 makes the bond angle slighter greater in NH3. P being less electronegative than N doesn't draw it's electrons as close so they don't repel as much.
Why pure NH3 does not burn in air but impure PH3 burn in air?
With traces of P2H4 present, PH3 is spontaneously flammable in air
Is pH 4 stronger than pH3?
No, a lower pH value indicates a stronger acid. Therefore, pH 3 is stronger than pH 4.
Which compound is more like an ionic compound NH3 or PH3?
NH3 is more like an ionic compound compared to PH3 because ammonia (NH3) displays some characteristics of ionic bonding due to its ability to accept and donate protons, while phosphine (PH3) has predominantly covalent bonding due to similar electronegativities of phosphorus and hydrogen.
Which acids would be stronger pH3 or pH5?
The lower the pH value, the stronger the acid. Therefore, pH 3 is stronger than pH 5. pH 3 has a higher concentration of hydrogen ions, making it a more acidic solution than pH 5.
Why NH3 is more basic than NF3?
NH3 is basic while BiH3 is only feebly basic because: 1) the atomic size of N is less than Bi.ther fore it has smaller size than Bi. 2)the electron density of N is much more than Bi due to small size. 3)therfore because of small size and high electronegativity of N the tendancy to donate its lone pair of electon in NH3 will be much higher than Bi in BIh3.
Why NH3 is a liquid and PH3 is a gas?
NH3 (ammonia) is a liquid at room temperature due to intermolecular hydrogen bonding that holds ammonia molecules together. PH3 (phosphine) is a gas at room temperature because its intermolecular forces are weaker, resulting in lower boiling point compared to NH3.
Which is more polar NH3 or H2O?
Ammonia (NH3) is more polar than water (H2O) due to the electronegativity difference between nitrogen and hydrogen atoms, which leads to a stronger dipole moment in NH3.
Why is phosphine non polar?
The shape is trigonal pyramidal Polarity is non-polar
Which boiling point is higher PH3 or AsH3?
The boiling point of AsH3 (Arsine) is higher than that of PH3 (Phosphine) due to the higher molecular weight of AsH3 compared to PH3. Stronger Van der Waals forces of attraction between molecules in AsH3 result in higher boiling point.
Why phosphine is a stronger reducing agent than ammonia?
Phosphine (PH3) is a stronger reducing agent than ammonia (NH3) because phosphorus is less electronegative than nitrogen, making it easier for phosphorus to donate electrons. This leads to phosphine being more readily oxidized and exhibiting stronger reducing properties compared to ammonia. Additionally, phosphine has a weaker P-H bond compared to the N-H bond in ammonia, which contributes to its stronger reducing ability.
