A cylinder (with movable piston) has a gas. The cylinder is put on oven. The gas absorbs 250 Joule of heat energy. If the gas expands and produces 100 Joules work,
how much is the change in internal energy (du)?

a. 350J
b. 150J
c. Can not be determined

If oil spills continue, all of the following should be expected except (2 points) death of aquatic life. polluted groundwater. decreased soil productivity. increased global temperatures.

What metric units would you use to measure the thickness of a key

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign