At 47°c, a gas has a pressure of 140 kpa. the gas is cooled until the
pressure decreases to 105 kpa. if the volume remains constant, what
will the final temperature be in kelvins? in degrees celsius?

According to the tide table below what time of day will the highest tide occur?

Which accurately compares concave and convex lenses?

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.