# Rate of pressure increase of contained air being heated

Wondering if I have a sealed steel tank filled with air and the air temp is 0C and the air pressure in the tank is 0, then heat is applied to the tank - what will the pressure be 100C? At 200C? At 300C? I assume the rate of expansion is constant, but correct me if this is wrong. Thanks.

Dale
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2021 Award
Are you familiar with the ideal gas law: ##PV=nRT##. It states (among other things) that the pressure is directly proportional to the temperature.

A brief note about the quantities: ##P## is the absolute pressure. So what you call 0 pressure is actually 1 atmosphere pressure or about 100 kPa. Also, the T is thermodynamic temperature measured in Kelvin. So 0 C is 273 K.

sophiecentaur