Finding pressure based of temperature

Question

There pressure of a quantity of an ideal gas at a temperature of 127ºC was 740 millimeters of mercury. If the volume was not changed, what would the pressure be if the temperature was raised to 1327ºC? Begin by adding 273 to convert degrees Celsius to kelvins.

Answer 1

1. Use Guy Lussac's Law:
2. When volume is constant, P1/T1 = P2/T2
3. Convert 740 mmHg to atm
4. 740/760 = 0.974 atm
5. Convert 127°C & 1327°C to kelvin
6. 127 + 273.15 = 400.15 K
7. 1327 + 273.15 = 1600.15 K
8. Plug in Values
9. 0.974/400.15 = P2/1600.15
10. Solve
11. P2 = 3.89 atm