PV = nRT
P = nRT/V where P=atm; n=moles; R=gas constant; T=ºK; and V=liters
P =(2.01 mol)(0.0821 Latm/ºKmol)(293ºK)/6.5 L
P = 7.43 atm = 7.4 atm (to 2 significant figures)
When the core of a protostar has reached about 10 million K, pressure within is so great that nuclear fusion of hydrogen begins, and a star is born.
The boiling point of chloroform is 61,15 oC.
It boils
The new volume is 544,5 l.
We know that steam is the gaseous phase of water, so it has water in it. It also has considerable thermal energy, too, as water must be heated quite a bit (at STP) to turn it into steam. It is the thermal energy in steam which we use to drive so many different things, like turbines to generate electric power.
PV = nRTn = moles = PV/RT = (10atm)(50.0L)/(0.0821Latm/Kmol)(300K)n = 20.3 moles H2 = 20. moles (to 2 significant figures)
It is in the gas phase.
In stars it starts due to the great pressure at the star's center, which compresses the hydrogen and raises temperature to a condition where fusion commences. On Earth in man made equipment such as tokamaks, the pressure is much lower and the temperature has to be raised to hundreds of millions of degC to start fusion in a plasma of deuterium and tritium
When the core of a protostar has reached about 10 million K, pressure within is so great that nuclear fusion of hydrogen begins, and a star is born.
Yes, butane freezes at -138 degC or -216F. It boils (condenses) at -0.5degC or 31F, at normal atmospheric pressure.
density of air at 10 degC and atmospheric pressure is 1.249 kg/m^3
The boiling point of chloroform is 61,15 oC.
When water is heated, there is a relation between temperature and pressure at which the water and steam are in equilibrium. This applies up to 374 degC at which the corresponding pressure is 222 bar abs or 3220 psi abs. Beyond this temperature liquid water cannot exist and the steam is said to be supercritical. At any temperature between 100 degC and 374 degC there will therefore be a pressure at which steam is just formed and this is said to be dry saturated steam. It is saturated because if the temperature drops even slightly at the same pressure, steam will condense. If at this same pressure the steam is further heated, it is said to be superheated because it is at a temperature higher than dry saturated steam would be. Superheated steam is desirable for use in steam turbines, because it prevents formation of water droplets as the steam is expanded through the turbine-the droplets could damage the turbine blades. In the supercritical region above 374 degC steam will always exist whatever the pressure, so the concept of superheat does not apply here.
A PWR has an inlet water temperature of 275 degC and outlet 325 degC
It boils
Water is transformed in vapors.
The energy is 103,6 kcal.