Answer:
- <em>If the volume is doubled and the pressure is tripled, </em><em><u>the temperature changes by a factor of 6.</u></em>
Explanation:
Since, for ideal gases the temperature is in direct relation to the volume and the pressure, you can predict that if the volume is doubled and the pressure is tripled the effect on the temperature will be 3 × 2 = 6 times.
You can prove it using the combined law of gases:
Where the letters P denote absolute pressures, the letters T denote temperature measured in absolute scale, and the letters V denote volume.
The changes given may be written it this way:
Then, you can write T₂ in terms of the other variables:
- T₂ = (P₂ V₂ T₂) / (P₁ V₁) = 3P₁ 2V₁ T₂ / (P₁V₁)
Cancel the common factors P₁ and V₁
Which proves that the final temperature is 6 times the initial temperature.
The most abundant element in the Sun and in the stars are hydrogen and helium. Like most of the stars, there is a spontaneous radioactive reaction happening in the Sun. Hydrogen is transformed into Helium. As long as the stars are young, the most abundant element is hydrogen.
Duane ate Mrs. Starch’s pencil
Answer:
The temperature of the molecule will be increased by a factor of 9
Explanation:
The relationship between the temperature and the rms speed of a gas is given by
Vrms=√(3RT/MM)
Where R = Universal gas constant
T = Absolute temperature of the gas in kelvin
MM = Molar mass of the gas
Since from the question, only the rms speed and the temperature are said to change, the term 3R/MM can be represented by a constant k. The relationship then becomes Vrms=√kT
At the intitial speed, temperature = T1
Vrms=√(kT1 ) (1)
When the speed is increased by a factor of 3, the relationship becomes
(3V)rms=√(kT2 ) (2)
Dividing equation (2) by equation (1)
(3V)rms/Vrms =√(kT2 )/√(kT1 )
3=√(T2/T1 )
T2/T1 =9
The temperature of the molecule will be increased by a factor of 9