Is the following reaction spontaneous at 298 k? answer by calculating δg. h2o(g) + c(s) → co(g) + h2(g) δh = 131.3 kj/mole δs = 134 j/mole˙k

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)

At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?

8) warming your hands by a fire is an example if which heat transfer? a. conduction b. convection c. radiation d. none of these