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What else can I help you with?
Does a pure substance always boil at a fixed temperature?
Yes, a pure substance boils at a fixed temperature under a specific pressure. This boiling point is characteristic of the substance and remains constant as long as the pressure is maintained. However, if impurities are present or if the pressure changes, the boiling point can vary.
If the amount and temperature of a gas are kept constant the pressure and volume of the gas are what?
When you say "amount", I'll assume you mean the 'mass' of the sample.The pressure and volume will be inversely proportional. That means that whateveryou do to one of them, the other one will change in just the right way so that theirproduct is always the same number.
What is the effect of pressure o the speed of sound?
The air pressure has no effect. The static air pressure p_ and the density ρ of air (air density) are proportional at the same temperature. The ratio p_ / ρ is always constant, on a high mountain or even on sea level altitude. That means, the ratio p_ / ρ is always constant on a high mountain, and even at "sea level". The static atmospheric pressure p_ and the density of air ρ go always together. The ratio stays constant. When calculating the speed of sound, forget the atmospheric pressure, but look accurately at the very important temperature. The speed of sound varies with altitude (height) only because of the changing temperature there.
The freezing point and boiling point for matter is a constant Explain this meaning of constant?
It means that the freezing or melting points do not change, that they are always the same, depending on the type of matter. For eg. the melting point or freezing point of water is 0○ Celsius and the boiling point is always 100○C.
What is the pressure of the gas when the volume is 60 CM3?
Well, honey, pressure is like a clingy ex - it's always around. But to answer your question, in order to determine the pressure of a gas, you also need to know the temperature and the amount of gas present. So, without that additional information, I can't give you a specific pressure value for a volume of 60 cm3.
Why constant pressure is always greater than constant volume?
You can't compare pressure with volume. Presumably, somebody was talking about something being greater AT constant pressure, compared to constant volume.
Why the human body temperature always remains constant in normal person?
why the human body temperature always remains constant in normal person
How temperature affect the speed of sound?
The speed of sound in air changes clearly with temperature, a little bit with humidity − but not with air pressure (atmospheric pressure).Statement: The static air pressure p_ and the density ρ of air (air density) are proportional at the same temperature, because the ratio p_ / ρ is always constant, on a high mountain or even on sea level altitude.Notice: The ratio p_ / ρ (static air pressure to air density) is really always constant.
Why pressure does not effect the speed of sound?
The static air pressure p_ and the density ρ of air (air density) are proportional at the same temperature. The ratio p_ / ρ is always constant, on a high mountain or even on sea level altitude. That means, the ratio p_ / ρ is always constant on a high mountain, and even at "sea level". The static atmospheric pressure p_ and the density of air ρ go always together. The ratio stays constant. When calculating the speed of sound, forget the atmospheric pressure, but look accurately at the very important temperature. The speed of sound varies with altitude (height) only because of the changing temperature there. See related link.
Does the pressure of a gas always increases with increasing temperature?
In general, the pressure of a gas increases with increasing temperature, assuming volume remains constant (according to Gay-Lussac's Law). This is because as temperature increases, gas molecules gain more kinetic energy and collide with the container walls more frequently and with greater force, resulting in increased pressure.
If the amount and temperature of a gas are kept constant the pressure and volume of the gas are what?
When you say "amount", I'll assume you mean the 'mass' of the sample.The pressure and volume will be inversely proportional. That means that whateveryou do to one of them, the other one will change in just the right way so that theirproduct is always the same number.
Does the volume of a gas always increase when temperature increases and pressure decreases?
Not necessarily. The volume of a gas is directly proportional to temperature and inversely proportional to pressure, according to the ideal gas law. If the temperature increases and pressure decreases proportionately, the volume would remain constant.
Why doesn't pressure affect the speed of sound?
Pressure doesn't affect the speed of sound because the static air pressure p_ and the density ρ of air (air density) are proportional at the same temperature and because the ratio p_ / ρ is always constant whether on a high mountain or even on sea level altitude. Therefore, the speed of sound stays constant and is only dependent on the changing temperature.
Under which conditions will the volume of a given sample of a gas always decrease?
The Ideal Gas Law states that PV=nRT, where P=pressure, V=volume, n=number of moles of gas, R=the relativity constant, and T=temp in Kelvin. According to this law, volume (V) varies as V=(nRT)/P. Using this, we can determine that the volume would normally increase with an increase in the number of moles and/or an increase in the temperature and/or a decrease in pressure. Therefore, we can logically determine that the volume of a gas would decrease in the instance of increasing temperature if either the number of moles of gas was decreased or the pressure was increased (to an extent where the level of volume increase by temperature change has been overcome.)
Can the freezing point be lower than its boiling point in a constant pressure?
At a constant pressure, the freezing point is always going to be lower than the boiling point.
In what way will the gibbs free energy always be negative?
The Gibbs free energy will always be negative for a spontaneous reaction at constant temperature and pressure. This suggests that the reaction is thermodynamically favorable and can proceed without the input of external energy.
The pressure of gas always increases with increasing temperature?
True.The Ideal Gas Law is PV = nRT, where P is pressure, V is volume, n is the amount of gas, R is the gas constant, and T is temperature. You can see clearly that, all other things being equal, pressure is directly proportional to temperature.
