The pressure inside a hydrogen-filled container was 2.10 at 21 . What would the pressure be if the container was heated to 85?

2 answers

8.5 to get the answer use a simple math equation where 21x= 85*2.1. Resulting in 21x= 178.5. then solve that equation and get the answer 8.5...
When posting questions, be sure to include units.

Pressure can be in kPas, psi, psi guage (the latter is not proportional to temperature).
Temperature could have been in °K, °C (the latter is not proportional to pressure).

Hint: use the ideal gas law
PV=nRT

but be sure to convert all quantities to consistent units.