Answer:
- initial temp: 313.2 K
- final temp: 340.5 K
- in Celsius: 67.3 °C
Step-by-step explanation:
Given a volume and quantity of gas at 699.0 mm Hg pressure has a temperature of 40.0 °C, you want to know the temperature at 760.0 mm Hg pressure.
Pressure and Temperature
Pressure and absolute temperature of a gas are proportional for a given quantity and volume.
Initial temperature
The temperature of 40.0 °C is an absolute temperature of ...
40.0 K + 273.15 K = 313.15 K ≈ 313.2 K
New temperature
The temperature after increasing the pressure can be found from ...
T/313.15 = (760.0 mm)/(699.0 mm)
T = 313.15 · 760/699 ≈ 340.5 . . . . Kelvin
In Celsius, that is ...
340.5 K -273.2 = 67.3 °C
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