2024年5月21日 · The freezing point (same as melting point) of H2 is 14.01 K (−259.14 °C, −434.45 °F)The boiling point of H2 is 20.28 K (−252.87 °C, −423.17 °F) Tags Chemistry Periodic Table

2015年11月18日 · Making matter more stable Hydrogen bonds make matter more stable. Whenever you are trying to changes phases it takes energy to overcome those strong inter molecular forces. In turn the melting point is raised to compensate.

2019年4月3日 · Para-nitrophenol shows intermolecular hydrogen bonding, which causes an increase in boiling point as different molecules bond better with each other, as compared to ortho-nitrophenol, where there is intramolecular hydrogen bonding, which does not help in increasing the boiling point, hence p-nitrophenol has a higher boiling point than o ...

2024年5月21日 · Hydrogen sulfide has a melting point of -82.8 degrees Celsius. This is the temperature at which the solid form of hydrogen sulfide transitions to a liquid state.

2024年5月30日 · Hydrogen has a very low melting point of -259.2 degrees Celsius (-434.6 degrees Fahrenheit), making it the element with the lowest melting point.

2024年6月11日 · The melting point of hydrogen peroxide (H2O2) is -0.43 °C, 273 K, or 31 °F. The boiling point of hydrogen peroxide is 150.2 °C, 423 K, or 302 °F.

2016年1月6日 · The boiling points of the hydrogen halides are as follows: $$\\begin{array}{cc} \\hline \\text{Species} & \\text{Boiling point / }\\mathrm{^\\circ C} \\\\ \\hline ...

2024年6月12日 · The boiling point of hydrogen peroxide (H2O2) is 150.2 °C, 423 K, or 302 °F. The melting point of hydrogen peroxide is -0.43 °C, 273 K, or 31 °F.

2018年2月24日 · The boiling point order is H2>HF>NH3. Water has the highest boiling point and melting point followed by hydrogen fluoride and lastly ammonia because water has two lone pairs on the oxygen atom which makes it highly electronegative and has two hydrogen atoms hence its capable of forming four hydrogen bonds with the surrounding molecules and hydrogen fluoride …

2018年8月7日 · The melting point of hydrogen fluoride is -83.6°C, as compared to that of ammonia, which is -77.73°C. How does this make any sense? Both hydrogen fluoride and ammonia show hydrogen bonding, which "elevates" the boiling points of these two compounds when compared to the rest of the pnictogen and halogen hydrides.