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The molar heat capacity of gaseous hexane at 25 degrees Celsius is 142.6 J What is the specific heat?
Wiki User
∙ 14y ago
142.6 J/(mol*C) ----------------- = 1.65 J/(g*C)
86 g/mol
Wiki User
∙ 14y ago
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Physical state of water at 250 degree celsius?
water at 250 degree Celsius exists in gaseous state
Why does water turn into gas?
Changing the phase of water to gas, you need to heat the water up to 100 degrees Celsius or 212 degrees F, the boiling point where the molecules get enough energy to excite them to the gaseous level - called steam.
What is the difference between steam and water vapor?
The Steam and Vapor are the same thing i.e. Water in its gaseous state. However Steam is formed by Forced Boiling and is at a pressure greater then the atmospheric pressure as used in a Steam Engine. Water Vapour is free conversion of Water from Liquid to Gaseous Stage thru evaporation. It is in approximate equilibrium with atmospheric pressure Steam is formed by by raising the Temperature (giving heat energy) of water above its Boiling Point i.e. 100 deg Celsius whereas evaporation of water (from water bodies) may occur at temperature way below the boiling point i.e. 30 deg Celsius. Drying of washed clothes is an example
What are the differences between gas and steam?
Steam is the gaseous form of water, but it really can only be considered to be fully gaseous when it is in a dry state, as at temperatures below the dry saturated steam line, it will contain droplets of water. Thus at atmospheric pressure it needs to be above 100 celsius to be dry, the required temperature for dryness rises with pressure. The Critical point for steam is at 374 celsius and 220 bar pressure, above this temperature it is supercritical and cannot be liquefied by any further increase in pressure. Thus in summary, steam above the boiling point at a particular pressure behaves as a gas, and above 374 celsius it is a gas whatever the pressure. Most gases like oxygen and nitrogen have liquid phases at much lower temperatures, ie well below any normal atmospheric condition experienced even in extreme low weather conditions, so we regard them as always gaseous, but actually they also have liquid/gaseous interface conditions, we just don't experience them in practice except in very low temperature work. In popular terminology 'steam' is what you see rising above the surface of hot water or from the spout of a kettle, but the fact that it is visible is due to the presence of water droplets and in this condition it is not gaseous steam as described above.
Why boiling points of gases are negative?
Negative values for the boiling points of gas are the result of using temperature scales, either Fahrenheit or Celsius, which do not begin at the true zero of temperature, which is the point of no heat. Only the Kelvin scale begins with the true zero, also known as absolute zero. Zero degrees Kelvin is equal to minus 273 degrees Celsius. If the boiling points of gas are given in Kelvins, then they are always positive. There are no negative degrees in the Kelvin scale. In the Celsius scale, zero is defined as the freezing point of water. Since the freezing point of water is hotter than the boiling point of most gases, you therefore get these negative numbers for the boiling point of gases, in Celsius.
What is ogygens state at 20degree's?
20 degrees Kelvin it will be solid 20 degrees Celsius it will be gaseous 20 degrees Fahrenheit it will be gaseous
What is the state of chlorine at 21 degrees celsius?
Gaseous state
What is the physical state of methane at 1000 degrees Celsius?
Gaseous state
Is it common to see tungsten in the gaseous state?
No. Because tungsten has a high boiling point of 5660 degrees Celsius before it can turn to its gaseous state. At normal room temperature,around 30 degrees Celsius, it is below its melting point of 3410 degrees Celsius, therefore it is more commonly seen as a solid
Is nitrogen a solid at 20 degrees Celsius?
Nitrogen ice is solid. Liquid nitrogen is liquid. At standard temperature and pressure, nitrogen is gaseous.
What occurs at 100 degrees Celsius at sea level?
the boiling point of pure water is 100 degrees Celsius at sea level.
What is the state of matter of nitrogen and carbon dioxide at 25 degrees Celsius?
Both are in gaseous state at 25Celsius
Whats the state of gold at 3000 degrees celsius?
It is solid.
What is state is chlorine in at 100 degrees Celsius?
Gaseous state, Boiling point (at St.Press.) -34.04 °C, 239.11 K, -29.27 °F
What is the STP for Oxygen?
STP is the same for all gasses an gaseous mixtures: 0 degrees Celsius at a prssure of 1 atm.
What is water doing at 212 degrees celsius?
Its molecules are gaining enough energy to break from a liquid into a gas. This is at 212 degrees Fahrenheit though. For Celsius its 100 degrees. At 212 degrees celsius it is molecules in a gaseous form and it fly in a random, 360 degrees flight path and keep going until it hits a surface and ricochets or it loses its energy and then turns back into a liquid state.
When does water begin entering the gaseous stage?
Water turns into gas at a temperature of 100 degrees Celsius or 212 degrees Fahrenheit at sea level. This gas is called steam.
