Dr. Nation has 0.75 mol of an unknown gas with a pressure of 500 mmHg and a volume of 290 mL. What is the temperature of this unknown gas? 0 30.2 K
93K
3.1K
O 78 K

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]